README: forgot to credit manchester united forums

README.md

@@ -24,7 +24,7 @@
 
 [<img src="http://i.imgur.com/FLOUuIqb.png" />](http://i.imgur.com/FLOUuIq.png)&nbsp;[<img src="http://i.imgur.com/Ud1LrfIb.png" />](http://i.imgur.com/Ud1LrfI.png)&nbsp;[<img src="http://i.imgur.com/ZC8W39ab.png" />](http://i.imgur.com/ZC8W39a.png)&nbsp;[<img src="http://i.imgur.com/o90kVPib.png" />](http://i.imgur.com/o90kVPi.png)&nbsp;[<img src="http://i.imgur.com/AaRRrU2b.png" />](http://i.imgur.com/AaRRrU2.png)&nbsp;[<img src="http://i.imgur.com/LmHtPhob.png" />](http://i.imgur.com/LmHtPho.png)&nbsp;[<img src="http://i.imgur.com/paiJPJkb.jpg" />](http://i.imgur.com/paiJPJk.jpg)&nbsp;[<img src="http://i.imgur.com/ZfavPHDb.png" />](http://i.imgur.com/ZfavPHD.png)
 
-Credit: [Convoe](http://www.convoe.com), [Kano](http://www.kano.me).
+Credit: [Convoe](http://www.convoe.com), [Kano](http://www.kano.me), [Manchester United Forum](http://manutdforums.com/).
 
 ## Requirements