Update readme & contributing guide to add versioning

[sdhuka]

• PR title and description conform to Pull Request guidelines.

Issue #, if available:

Description of changes:

• Update readme & contributing guide to add versioning.

How did you test these changes?
(Please add a line here how the changes were tested)

Documentation update required?

• No
• Yes (Please include a PR link for the documentation update)

General Checklist

• Added Unit Tests
• Added Integration Tests
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[abdallahshaban557]

LGTM

[codecov-commenter]

Codecov Report

Merging #2544 (44a33e2) into main (f81521f) will increase coverage by 0.01%.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##             main    #2544      +/-   ##
==========================================
+ Coverage   41.44%   41.46%   +0.01%     
==========================================
  Files         874      874              
  Lines       27643    27643              
  Branches     3883     3883              
==========================================
+ Hits        11457    11461       +4     
+ Misses      14959    14955       -4     
  Partials     1227     1227