Uploading my AppName.xcodeproject file

I uploaded all of the files and folders of my app from my local hard drive to my GitHub repository. But when I finally uploaded my AppName.xcodeproject file, it instead loaded it as AppName.xcodeproject.zip . I am able to download my repository to my local computer, but then I have to convert this zip file, before I am able to open it with Xcode. (Other potential downloaders of my app might not know to do this.) But I see that other GitHub users have AppName.xcodeproject folders in their repositories - without having it as a zip file. So how do I correctly upload my .xcodeproject file ?