I tried going through the official documents such as
https://learn.microsoft.com/en-us/outlook/add-ins/addin-tutorial#update-the-manifest-1
But they are dealing with the xml file there. I wish to add jQuery Shapeshift to my Outlook but there is no such xml file added there. The source is
https://github.com/AshesOfOwls/jquery.shapeshift
So how can I add Shapeshift to my outlook? I intend to add it to the backstage view if possible