how do i upload twitter gifs

zero two
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i am trying to upload the gif at this twitter link
https://twitter.com/sharedast/status/1121410612624535554
how can i do this?
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Putting in just that URL should work. If it doesn't, it means Twitter is lying about what format it's serving, which is a common thing it does. Unsurprisingly, it's actually an mp4 video file, https://video.twimg.com/tweet_video/D5AMs9DXoAIjbZm.mp4

You'll have to find a way to convert that into a gif or webm, like this, and give a thanks to twitter for lying.
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