title: Git: Import commits from a repo to another repo
body: <p>I have a big <code>Git</code> repository for a project for which I created a plug-in which also is source controller with <code>Git</code>. Recently I copied the plug-in's folder to the main project folder. Now I have a project folder source controlled with <code>Git</code> and the plug-in's folder which is also source controlled with <code>Git</code>. My question is, is there a way to import the commits from the plug-in's repository to the main repository so I can get rid of the plug-in's <code>.git</code> folder?</p>