Merge pull request #6019 from mendax1234/master

Add CI Configuration part for `enable creation date` in `git-revision-date-localized` plugin

Author: squidfunk

docs/setup/adding-a-git-repository.md

@@ -222,6 +222,9 @@ The following configuration options are supported:
           enable_creation_date: true
     ```
 
+    !!! note
+        If you are deploying through a CI system, you might need to adjust your CI settings when fetching the code. For more information, see [git-revision-date-localized](https://github.com/timvink/mkdocs-git-revision-date-localized-plugin#note-when-using-build-environments).
+
 <!-- md:option git-revision-date-localized.fallback_to_build_date -->
 
 :   <!-- md:default `false` --> Enables falling back to