[Docs] Cleanup README Files

[deeleeramone]

1. Why? (1-3 sentences or a bullet point list):

   • Manually maintaining individual README files is prone to error and being out-of-sync.

2. What? (1-3 sentences or a bullet point list):

   • Refer to the documentation website so we can maintain a single source of truth.

3. Impact (1-2 sentences or a bullet point list):

   • We may need to find a better way to generate the content that is visible on PyPI.

4. Testing Done:

   • N/A