docs: remove word repetition

[thiagola92]

Closes #

Proposed Changes

Briefly describe your proposed changes: Just removed one word

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• pytest tests completes successfully
• Commit messages are conventional
• Sign CLA (if not already signed)

[telegraf-tiger]

Thanks so much for the pull request!
🤝 ✒️ Just a reminder that the CLA has not yet been signed, and we'll need it before merging. Please sign the CLA when you get a chance, then post a comment here saying !signed-cla

[codecov-commenter]

Codecov Report

Base: 90.21% // Head: 90.21% // No change to project coverage 👍

Coverage data is based on head (7712090) compared to base (0927944).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #532   +/-   ##
=======================================
  Coverage   90.21%   90.21%           
=======================================
  Files          39       39           
  Lines        3412     3412           
=======================================
  Hits         3078     3078           
  Misses        334      334           

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[thiagola92]

!signed-cla

[thiagola92]

!signed-cla

[bednar]

Thanks for your PR 👍

LGTM