fix tip box on OnPlayerText (#1106)

Author: itsneufox

docs/scripting/callbacks/OnPlayerText.md

@@ -36,7 +36,7 @@ public OnPlayerText(playerid, text[])
 
 <TipNPCCallbacks />
 
-::: tip 
+:::tip 
 
 By default, this callback sends a message containing the content of the message, the player's name, and their ID. Returning 0 will ignore this default behaviour, as demonstrated in the code example above.