Fix screenshot

Author: leplatrem

README.md

@@ -1,6 +1,5 @@
-**Subtivals**, a program to project Advanced SubStation Alpha (ASS, *.ass), Subrip (*.srt) and simple text (*.txt) subtitles, during film festivals for example.
+**Subtivals**, a program to project Advanced SubStation Alpha (ASS, *.ass), Subrip (*.srt) and simple text (*.txt) subtitles, during film festivals or live shows for example.
 
-![screenshot](http://mathieu-leplatre.info/media/subtivals/subtivals.png)
-
-# [http://subtivals.org](http://subtivals.org)
+# [https://subtivals.org](https://subtivals.org)
 
+![screenshot](pictures/screenshot-2.0-macos.png)