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Bruno: You don't need to tell people to get git just to grab the latest copy of the file. They can pull the version from the master branch (which is what you would normally want for testing current rawhide) using the http url:
You can just provide a clickable link to that on this page. I think that will simplify things a bit. They'll probably need to do a save as since the content type (text/plain) is such that the page will probably be displayed by their browser.