docs: Enhancing the index.rst documentation

[Jagrutiti]

Fix: Shortened and reframed a few sentences. Added and removed words.

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

• [ ] Issue reference:
• [ ] Subject Matter Expert (SME) reviewer: NA
• [ ] Peer reviewer: NA
• [ ] Preview Links:
• [X] Explain the changes: I tried to enhance the existing documentation.
• [ ] Dependency changes:

Thanks for opening the Pull Request for moja global. Happy contributing ✨