Since this is a second round review, I'm going to trim more heavily.
+# Git Hook scripts
+Gitano administrators may create, or delegate creation of
Perhaps worth a comma at the end of this line?
+[Lua][lua] scripts to take action or provide further authentication
+when content is pushed to a repository.
+5. The `refname`, `oldsha` and `newsha` as the third to fifth
...second to fourth...
+6. For pre-receive or post-receive per-repository hooks as the
+7. Global hooks work the same as per-repository hooks,
+ except their first parameter is instead a callable function
+ which will run the per-repository hook when called,
+ so global hooks may either replace or augment per-repository hooks.
...except they are passed a callable function first, followed by the positional
parameters as described above. The callable will run the per-repository
hook when called, ...
Otherwise I think it looks good.
If you're ok with the above changes, and don't think I've missed anything,
then I'm happy to apply these as part of a merge.
Daniel Silverstone http://www.digital-scurf.org/
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