This plugin exposes $JENKINS_HOME/userContent as Git repository.
Jenkins has a mechanism known as "User Content", where administrators can place files inside
$JENKINS_HOME/userContent, and these files are served from
http://yourhost/jenkins/userContent. This can be thought of as a mini HTTP server to serve images, stylesheets, and other static resources that you can use from various description fields inside Jenkins.
This plugin exposes this this
$JENKINS_HOME/userContent directory as a Git repository, allowing administrators to use git to push/pull changes and manage them with history.
Once this plugin is installed, see http://yourserver/jenkins/userContent.git in your browser for how to access this repository.