change the link

Author: wangxin

README.md

@@ -34,7 +34,7 @@ Contributions *very welcome* but first see [Contributing](#contributing)
 * [Recalbox](https://www.recalbox.com) - Lighter weight retro-gaming and media center on the Raspberry Pi.
 * [Lakka](http://lakka.tv) - Retro-gaming on the Raspberry Pi built entirely on RetroArch.
 * [RasPlex](http://www.rasplex.com/) - A Plex client for the Raspberry Pi.
-* [CentOS](https://wiki.centos.org/Download) - CentOS on the Raspberry Pi. ![Supports Raspberry Pi 2+](/media/badges/rpi-2+.png)
+* [CentOS](https://wiki.centos.org/SpecialInterestGroup/AltArch/Arm32/RaspberryPi3) - CentOS on the Raspberry Pi. ![Supports Raspberry Pi 2+](/media/badges/rpi-2+.png)
 
 # Tools
 * [PiBakery](http://www.pibakery.org/) - The blocks based, easy to use setup tool for Raspberry Pi.