Update knights.md

Author: ivan-hc

apps/knights.md

@@ -2,18 +2,9 @@
 
  Knights aims to be the ultimate chess resource on your computer. It's  designed to be both friendly to new chess  players and functional for Grand Masters. At the moment you can play either against other human or against  the machine using an engine like gnuchess. 
 
- This game is part of the KDE Games suite.
- 
- USAGE (from the command line):
- 
-           kdegames -h (shows the list of games)
-           kdegames $GAME (launches the selected game)
-           
  ![Screenshot](https://cdn.kde.org/screenshots/knights/knights.png)
 
- SITE: https://apps.kde.org
-
- SOURCE: https://github.com/ivan-hc/KDE-games-suite-appimage
+ SITE: https://github.com/pkgforge-dev/Knights-AppImage
 
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