make XP full gls entry

glossary.tex

@@ -52,7 +52,7 @@
   text={Story Point},
   prefix={a\space},
   nonumberlist,
-  description={allow players to declare that some part of their backstory arrives on scene to help the situation. They also grant XP.}
+  description={allow players to declare that some part of their backstory arrives on scene to help the situation. They also grant \glsfmtplural{xp}}
 }
 
 \newglossaryentry{characterPool}{