Fixed README.md

Author: Bernd Haberstumpf

README.md

@@ -26,7 +26,7 @@ und einer guten Portion Action.
 Hier kannst du das Buch in seiner PDF Version herunterladen:
 
 * [Operation P9 - RPG Kampagne im C23 Universum](https://github.com/poldi2015/Plane9/releases/latest/download/Plane9.pdf)
-* * [Character Sheet](https://github.com/poldi2015/Plane9/releases/latest/download/Operation_P9_Character_Sheet.pdf)
+* [C23 Character Sheet](https://github.com/poldi2015/Plane9/releases/latest/download/Operation_P9_Character_Sheet.pdf)
 
 ## Print Version