CompatHelper: bump compat for Documenter to 1 for package docs, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the Documenter package from 0.27 to 0.27, 1 for package docs.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[github-actions]

Pull Request Test Coverage Report for Build 6412917992

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.655%

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Totals
Change from base Build 6411379502:	0.0%
Covered Lines:	838
Relevant Lines:	867

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💛 - Coveralls

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (c133a0b) 96.65% compared to head (f900889) 96.65%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #104   +/-   ##
=======================================
  Coverage   96.65%   96.65%           
=======================================
  Files          11       11           
  Lines         867      867           
=======================================
  Hits          838      838           
  Misses         29       29           

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[devmotion]

Fixed by #97.