BApp details: Git Bridge
This extension lets Burp users store Burp data and collaborate via git. Users can right-click supported items in Burp to send them to a git repo and use the Git Bridge tab to send items back to the originating Burp tools.
You can install BApps directly within Burp, via the BApp Store feature in the Burp Extender tool. You can also download them from here, for offline installation into Burp.
Please note that extensions are written by third party users of Burp, and PortSwigger Web Security makes no warranty about their quality or usefulness for any particular purpose.