[DOC] Breaking the README into multiple files

[Vignesh025]

The README is quite lengthy, and it might be better to split it into multiple files for better readability and organization. We can break down the different sections (e.g., installation, contributing, release notes and changelogs) into their own files, and link them back to the main README for easy reference.

If you think this is a good idea , Assign me to this issue and I'll start working on it.