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

[github-actions[bot]]

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.

[codecov[bot]]

Codecov Report

Merging #68 (d968fbb) into master (5049c5f) will increase coverage by 1.69%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #68      +/-   ##
==========================================
+ Coverage   96.55%   98.24%   +1.69%     
==========================================
  Files           1        1              
  Lines         116      114       -2     
==========================================
  Hits          112      112              
+ Misses          4        2       -2     

see 1 file with indirect coverage changes

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[ArnoStrouwen]

Already done.