Fix broken screenshot

vor 7 Jahren · d3bbef27e7
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ An alternative implementation of the GNU social project. Based on [ActivityStrea

 Click on the screenshot to watch a demo of the UI:

 [![Screenshot](http://puu.sh/vMcvm/290f459dd4.jpg)][youtube_demo]
 [![Screenshot](https://i.imgur.com/pG3Nnz3.jpg)][youtube_demo]

 [youtube_demo]: https://www.youtube.com/watch?v=YO1jQ8_rAMU