docs(help): add see also for the help command

[remyleone]

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Relates OR Closes #0000

Release note for CHANGELOG:

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.34%. Comparing base (e050ce1) to head (ece1c78).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
internal/namespaces/help/custom.go	0.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5173      +/-   ##
==========================================
- Coverage   58.34%   58.34%   -0.01%     
==========================================
  Files         310      310              
  Lines       67898    67903       +5     
==========================================
  Hits        39617    39617              
- Misses      26809    26814       +5     
  Partials     1472     1472              

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