Update README.md with current course links and details.

Author: harrystaley

README.md

@@ -4,7 +4,7 @@ This is a curated list of free courses from reputable universities like MIT, Sta
 
 ## Learning How to Efficiently Learn
 
-If it has been awhile since you have been in the classroom or need to take your learning skills to the next level this course is mandatory. This was my survival kit when I worked full time while persuing a B.S. in Computer Science.
+If it has been awhile since you have been in the classroom or need to take your learning skills to the next level this course is mandatory. This was my survival kit when I worked full time while pursuing a B.S. in Computer Science.
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
@@ -14,99 +14,82 @@ Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
-[Intro to Computer Science](https://www.edx.org/course/cs50s-introduction-computer-science-harvardx-cs50x) | Harvard | 10 weeks | 10-20 hours/week | self-paced | none | Edx
+[Intro to Computer Science](https://www.edx.org/course/cs50s-introduction-computer-science-harvardx-cs50x) | Harvard | 10 weeks | 10-20 hours/week | self-paced | none | EdX
+[CS50's Introduction to Programming with Python](https://cs50.harvard.edu/python/) | Harvard | 10 weeks | 10-20 hours/week | self-paced | none | EdX
 [Mathematical Thinking in Computer Science](https://www.coursera.org/learn/mathematical-thinking-computer-science) | UC San Diego | 6 weeks | 2-5 hours/week | once a month | none | Coursera
 
-At this point you should be publishing the code you produce in your courses to your github repo.
-
 ## Programming
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
-[Programming for Everybody (Getting Started with Python)](https://www.coursera.org/learn/python)| University of Michigan | 4 weeks | 4-6 hours/week | self-paced | none | Coursera
-[Python Data Structures](https://www.coursera.org/learn/python-data)| University of Michigan | 4 weeks | 4-6 hours/week | self-paced | Programming for Everybody (Getting Started with Python) | Coursera
-[Using Python to Access Web Data](https://www.coursera.org/learn/python-network-data)| University of Michigan | 4 weeks | 4-6 hours/week | self-paced | Python Data Structures | Coursera
-[Using Databases with Python](https://www.coursera.org/learn/python-databases)| University of Michigan | 3 weeks | 4-8 hours/week | self-paced | Using Python to Access Web Data | Coursera
-[Capstone: Retrieving, Processing, and Visualizing Data with Python](https://www.coursera.org/learn/python-data-visualization) | University of Michigan | 2 weeks | 4-6 hours/week | self-paced | Using Databases with Python | Coursera
-
-###### Alternative - This specialization contains all of the programming courses listed above.
-Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
-:-- | :--: | :--: | :--: | :--: | :--: | :--:
-[Python 3 Programming Specialization](https://www.coursera.org/specializations/python-3-programming) | University of Michigan | 5 months | 7 hours/week | self-paced | none | Coursera
+[Python for Everybody Specialization](https://www.coursera.org/specializations/python) | University of Michigan | 8 months | 3-6 hours/week | self-paced | none | Coursera
 
 ## Math
 
 ### Single Variable Calculus
-Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
-:-- | :--: | :--: | :--: | :--: | :--: | :--:
-[Calculus 1A: Differentiation](https://www.edx.org/course/calculus-1a-differentiation) | MIT | 12 weeks | 6-10 hours/week | self-paced | [pre-calculus](https://www.edx.org/course/precalculus-asux-mat170x) | Edx
-[Calculus 1B: Integration](https://www.edx.org/course/calculus-1b-integration) | MIT | 15 weeks | 6-10 hours/week | self-paced | Calculus 1A: Differentiation | Edx
-[Calculus 1C: Coordinate Systems & Infinite Series](https://www.edx.org/course/calculus-1c-coordinate-systems-infinite-mitx-18-01-3x-0)| MIT | 8 weeks | 6-10 hours/week | self-paced | Calculus 1B: Integration | Edx
 
-###### Alternative - This specialization contains all of the Calculus courses listed above.
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
-[18.01x Single Variable Calculus](https://www.edx.org/xseries/mitx-18.01x-single-variable-calculus)| MIT | 10 months | 6-10 hours/week | self-paced | [pre-calculus](https://www.edx.org/course/precalculus-asux-mat170x) | Edx
+[Calculus 1A: Differentiation](https://www.edx.org/course/calculus-1a-differentiation) | MIT | 12 weeks | 6-10 hours/week | self-paced | [pre-calculus](https://www.edx.org/course/precalculus-asux-mat170x) | EdX
+[Calculus 1B: Integration](https://www.edx.org/course/calculus-1b-integration) | MIT | 15 weeks | 6-10 hours/week | self-paced | Calculus 1A | EdX
+[Calculus 1C: Coordinate Systems & Infinite Series](https://www.edx.org/course/calculus-1c-coordinate-systems-infinite-mitx-18-01-3x-0) | MIT | 8 weeks | 6-10 hours/week | self-paced | Calculus 1B | EdX
+
+###### Alternative
+[18.01x Single Variable Calculus](https://www.edx.org/xseries/mitx-18.01x-single-variable-calculus) | MIT | 10 months | 6-10 hours/week | self-paced | [pre-calculus](https://www.edx.org/course/precalculus-asux-mat170x) | EdX
 
 ### Linear Algebra and Statistics
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
-[Linear Algebra - Foundations to Frontiers](https://www.edx.org/course/linear-algebra-foundations-to-frontiers) | UT Austin | 15 weeks | 6-10 hours/week | self-paced | [pre-calculus](https://www.edx.org/course/precalculus-asux-mat170x) | Edx
-[Statistics with Python Specialization](https://www.coursera.org/specializations/statistics-with-python) | University of Michigan | 12 weeks | 3-6 hours/week | self-paced | None | Coursera
+[Linear Algebra - Foundations to Frontiers](https://www.edx.org/course/linear-algebra-foundations-to-frontiers) | UT Austin | 15 weeks | 6-10 hours/week | self-paced | [pre-calculus](https://www.edx.org/course/precalculus-asux-mat170x) | EdX
+[Introduction to Statistics](https://www.coursera.org/learn/stanford-statistics) | Stanford | 7 weeks | 5 hours/week | self-paced | none | Coursera
 
 ## Databases
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :--: | :--: | :--: | :--: | :--: | :--: | :--:
-[Database Design and Basic SQL in PostgreSQL](https://www.coursera.org/learn/database-design-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self paced | The first two courses in the programming section above. | Coursera
-[Intermediate PostgreSQL](https://www.coursera.org/learn/intermediate-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self paced | The first two courses in the programming section above. | Coursera
-[JSON and Natural Language Processing in PostgreSQL](https://www.coursera.org/learn/json-natural-language-processing-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self paced | The first two courses in the programming section above. | Coursera
-[Database Architecture, Scale, and NoSQL with Elasticsearch](https://www.coursera.org/learn/database-architecture-scale-nosql-elasticsearch-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self paced | The first two courses in the programming section above. | Coursera
+[Database Design and Basic SQL in PostgreSQL](https://www.coursera.org/learn/database-design-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self-paced | Programming basics | Coursera
+[Intermediate PostgreSQL](https://www.coursera.org/learn/intermediate-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self-paced | Previous course | Coursera
+[JSON and Natural Language Processing in PostgreSQL](https://www.coursera.org/learn/json-natural-language-processing-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self-paced | Previous course | Coursera
+[Database Architecture, Scale, and NoSQL with Elasticsearch](https://www.coursera.org/learn/database-architecture-scale-nosql-elasticsearch-postgresql?specialization=postgresql-for-everybody) | University of Michigan | 4 weeks | 4-6 hours/week | self-paced | Previous course | Coursera
 
-###### Alternative - This specialization contains all of the Database and SQL courses listed above.
-Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
-:--: | :--: | :--: | :--: | :--: | :--: | :--:
-[PostgreSQL for Everybody](https://www.coursera.org/specializations/postgresql-for-everybody) | University of Michigan | 4 months | 4-6 hours/week | self paced | The first two courses in the programming section above. | Coursera
+###### Alternative
+[PostgreSQL for Everybody](https://www.coursera.org/specializations/postgresql-for-everybody) | University of Michigan | 4 months | 4-6 hours/week | self-paced | Programming basics | Coursera
+[Databases: Relational Databases and SQL](https://www.edx.org/course/databases-5-sql) | Stanford | 6 weeks | 5-10 hours/week | self-paced | none | EdX
 
 ## Data Science
 
-Courses | School | Duration | Effort | Frequency | Prerequisites
-:--: | :--: | :--: | :--: | :--: | :--:
-[Introduction to Data Science in Python](https://www.coursera.org/learn/python-data-analysis) | University of Michigan | 3 weeks | 4-6 hours/week | self-paced | basic programming knowledge
-[Applied Plotting, Charting & Data Representation in Python](https://www.coursera.org/learn/python-plotting) | University of Michigan | 4 weeks | 5-7 hours/week | self-paced | Introduction to Data Science in Python
-[Applied Machine Learning in Python](https://www.coursera.org/learn/python-machine-learning) | University of Michigan | 6 weeks | 5-7 hours/week | self-paced | Applied Plotting, Charting & Data Representation in Python
-[Applied Text Mining in Python](https://www.coursera.org/learn/python-text-mining) | University of Michigan | 5 weeks | 5-7 hours/week | self-paced | Applied Machine Learning in Python
-[Applied Social Network Analysis in Python](https://www.coursera.org/learn/python-social-network-analysis) | University of Michigan | 5 weeks | 5-7 hours/week | self-paced | Applied Text Mining in Python
-
-###### Alternative - This specialization contains all of hte Data Science courses listed above.
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :--: | :--: | :--: | :--: | :--: | :--: | :--:
-[Applied Data Science with Python Specilization](https://www.coursera.org/specializations/data-science-python) | University of Michigan | 5 months | 7 hours/week | self-paced | Python Programming Skills | Coursera
+[Applied Data Science with Python Specialization](https://www.coursera.org/specializations/data-science-python) | University of Michigan | 5 months | 7 hours/week | self-paced | Python programming skills | Coursera
 
-## Computing Systems
+Optional:
+[IBM Data Science Professional Certificate](https://www.coursera.org/professional-certificates/ibm-data-science) | IBM | 10 months | 4 hours/week | self-paced | none | Coursera
 
-Courses | School | Duration | Effort | Frequency | Prerequisites
-:-- | :--: | :--: | :--: | :--: | :--:
-[Build a Modern Computer from First Principles: From Nand to Tetris II](https://www.coursera.org/learn/nand2tetris2) | Hebrew University of Jerusalem | 6 weeks | 10-15 hours/week | once a month | Build a Modern Computer from First Principles: From Nand to Tetris
-[Introduction to Operating Systems](https://imp.i115008.net/introduction-to-operating-systems)| Georgia Tech | 8 weeks | 5-8 hours/week | self-paced | Build a Modern Computer from First Principles: From Nand to Tetris II
+## Computing Systems
 
+Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
+:-- | :--: | :--: | :--: | :--: | :--: | :--:
+[Build a Modern Computer from First Principles I](https://www.coursera.org/learn/build-a-computer) | Hebrew University | 6 weeks | 10-15 hours/week | self-paced | none | Coursera
+[Build a Modern Computer from First Principles II](https://www.coursera.org/learn/nand2tetris2) | Hebrew University | 6 weeks | 10-15 hours/week | self-paced | Part I | Coursera
+[Introduction to Operating Systems](https://imp.i115008.net/introduction-to-operating-systems) | Georgia Tech | 8 weeks | 5-8 hours/week | self-paced | Part II | Udacity
 
 ## Computer Science Theory
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
-[Computer Science: Algorithms, Theory, and Machines](https://www.coursera.org/learn/cs-algorithms-theory-machines) | Princeton | 10 weeks | 2-5 hours/week | once a month | Calculus 1A (all), basic programming | Coursera
-[Algorithms, Part I](https://www.coursera.org/learn/algorithms-part1) | Princeton | 6 weeks | 6-12 hours/week | once a month | Computer Science: Algorithms, Theory, and Machines | Coursera
-[Algorithms, Part II](https://www.coursera.org/learn/algorithms-part2) | Princeton | 6 weeks | 6-12 hours/week | once a month | Algorithms, Part I | Coursera
-
+[Computer Science: Algorithms, Theory, and Machines](https://www.coursera.org/learn/cs-algorithms-theory-machines) | Princeton | 10 weeks | 2-5 hours/week | once a month | Calculus, basic programming | Coursera
+[Algorithms, Part I](https://www.coursera.org/learn/algorithms-part1) | Princeton | 6 weeks | 6-12 hours/week | once a month | Previous course | Coursera
+[Algorithms, Part II](https://www.coursera.org/learn/algorithms-part2) | Princeton | 6 weeks | 6-12 hours/week | once a month | Part I | Coursera
+[Automata Theory](https://www.coursera.org/learn/automata) | Stanford | 6 weeks | 4-8 hours/week | self-paced | Theory basics | Coursera
 
 ## Computer Applications
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
 [Database Management Essentials](https://www.coursera.org/learn/database-management) | CU | 7 weeks | 4-6 hours/week | twice a month | basic programming & CS knowledge | Coursera
-[Cryptography I](https://www.coursera.org/learn/crypto)| Stanford | 7 weeks | 5 hours/week | once a month | Linear Algebra - Foundations to Frontiers & Introduction to Probability and Data | Coursera
+[Cryptography I](https://www.coursera.org/learn/crypto) | Stanford | 7 weeks | 5 hours/week | once a month | Linear Algebra | Coursera
+[Applied Cryptography](https://www.edx.org/course/applied-cryptography) | CU | 6 weeks | 4–6 hours/week | self-paced | programming | EdX
 
 ## Unix
 
@@ -119,4 +102,6 @@ Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 
 Courses | School | Duration | Effort | Frequency | Prerequisites | Provider
 :-- | :--: | :--: | :--: | :--: | :--: | :--:
-[Open Source Software Development, Linux and Git Specialization](https://www.coursera.org/specializations/oss-development-linux-git) | The Linux Foundation | 4 Months | 3-5 Hours a week | self-paced | some programming | Coursera
+[Open Source Software Development, Linux and Git Specialization](https://www.coursera.org/specializations/oss-development-linux-git) | The Linux Foundation | 4 Months | 3-5 Hours/week | self-paced | some programming | Coursera
+[Version Control with Git](https://www.coursera.org/learn/introduction-git-github) | Google | 1 week | 5 hours | self-paced | none | Coursera
+