Update docs to include CRD upgrade

[vepatel]

Proposed changes

• Update docs to include CRD upgrade during operator installation

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (973cf3f) 52.11% compared to head (db88557) 52.09%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4851      +/-   ##
==========================================
- Coverage   52.11%   52.09%   -0.03%     
==========================================
  Files          60       60              
  Lines       17376    17376              
==========================================
- Hits         9056     9052       -4     
- Misses       8006     8008       +2     
- Partials      314      316       +2     

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