Apply fixes from StyleCI

[mechelon]

This pull request applies code style fixes from an analysis carried out by StyleCI.

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[what-the-diff]

PR Summary

• Improved comments endpoint documentation
  Added a description to clarify the purpose of the comments endpoint.
• Fixed incorrect action label
  Changed the "Retrieve" label to the appropriate "Create" label.
• Removed extra spaces
  Cleaned up unneeded spaces in front of each line (except for the first one), making the code clearer and more readable.