I've updated README.md to improve its consistency and fluency.

[zackseal89]

This commit refines README.md to enhance its overall quality:

• Introduction: I made the introduction more concise and impactful.
• Key Features: I rephrased feature descriptions for better clarity and conciseness, and grouped related features.
• Formatting: I ensured consistent markdown formatting, a professional tone, and addressed spacing issues throughout the document.
• Links: I verified all links for correct formatting and plausibility.
• Final Review: I conducted a final pass to ensure all changes are well-integrated and the document flows smoothly.

These changes aim to provide you with a clearer and more engaging overview of the Rybbit project.

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