add missing feature to comparison "Reject unsigned commits"

[6543]

add issue "Reject unsigned commits" #7455 to docu

[codecov-io]

Codecov Report

Merging #7456 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master   #7456      +/-   ##
=========================================
- Coverage   41.21%   41.2%   -0.01%     
=========================================
  Files         469     469              
  Lines       63557   63557              
=========================================
- Hits        26193   26190       -3     
- Misses      33943   33945       +2     
- Partials     3421    3422       +1

Impacted Files	Coverage Δ
models/repo_list.go	72.08% <0%> (-1.02%)	⬇️
models/gpg_key.go	55.83% <0%> (-0.84%)	⬇️
modules/log/event.go	65.64% <0%> (+1.02%)	⬆️

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[6543]

-> duplicated with #2770 -> #7465