Broken link in list of external resources

[maneesha]

What is the problem?

Using a UNIX/Linux emulator (Cygwin) or Secure Shell (SSH) client (Putty) in the External References section redirects to an individual's website homepage.

Location of problem (optional)

https://swcarpentry.github.io/shell-novice/reference.html#external-references

[bkmgit]

Thanks. The site was updated. Maybe better to link to software documentation pages:

• https://www.chiark.greenend.org.uk/~sgtatham/putty/docs.html
• https://cygwin.com/
  with a short description of the capabilities. Many people on Windows may also use Windows Subsystem for Linux.
  @deppen8 @gcapes Any thoughts?