update promo screenshot

README.markdown

@@ -1,4 +1,4 @@
-# Forget
+[![Forget](assets/promo.gif)](https://forget.codl.fr)
 
 ![User count](https://forget.codl.fr/api/badge/users)
 ![Maintenance status](https://img.shields.io/maintenance/yes/2019.svg)
@@ -7,11 +7,9 @@
 [![Test coverage](https://img.shields.io/codecov/c/github/codl/forget.svg)](https://codecov.io/gh/codl/forget)
 [![Code quality](https://img.shields.io/codacy/grade/1780ac6071c04cbd9ccf75de0891e798.svg)](https://www.codacy.com/app/codl/forget?utm_source=github.com&utm_medium=referral&utm_content=codl/forget&utm_campaign=badger)
 
-
 Forget is a post deleting service for Twitter and Mastodon. It lives at
 <https://forget.codl.fr>.
 
-[![](assets/screenshot.png)](https://forget.codl.fr)
 
 ## Running your own