docs: fix typos and improve clarity in contribution guidelines

[ersachin3112]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

fix typos and improve clarity in contribution guidelines, corrected grammatical issues, improved sentence structure, and refined formatting across the contribution guidelines in README.md

Breaking Changes

No

Additional Info

No

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.75%. Comparing base (0cf3af4) to head (b06859d).
Report is 12 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #168   +/-   ##
=======================================
  Coverage   92.75%   92.75%           
=======================================
  Files           2        2           
  Lines          69       69           
  Branches       19       19           
=======================================
  Hits           64       64           
  Misses          5        5           

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