Add demo gif

README.md

@@ -2,7 +2,6 @@
 
 A Chrome extension that adds a button to the toolbar that allows you to lookup all the email addresses on a page in the [OpenPGP Key Server](https://keys.openpgp.org/). This is useful for quickly finding the public keys of people you are communicating with over email. The extension adds a 🔒 button to the toolbar that you can click to initiate the lookup. Pressing Ctrl+Shift+Z (Cmd+Shift+Z on Mac) will also initiate the lookup.
 
+## Demo
 
-## Demostration
-
-https://github.com/JoepdeJong/chrome-openpgp-email-lookup/blob/main/demo/demo.mov
+![Demo](demo/demo-short.gif)