clarify cc starting items in overview.tex

overview.tex

@@ -17,7 +17,7 @@
   \item
   Spend 50 \glspl{xp}.
   \item
-  Pick 1 item per Skill (worth 10 \glspl{sp} or less)
+  Pick 1 item per Skill dot (worth 10 \glspl{sp} or less)
 
 \end{itemize}