fixed typo for event name in the hook

Author: KillStr3aK

README.md

@@ -13,11 +13,11 @@ public interface IChatService : ISharedService
 
     public delegate HookResult OnPlayerSayTeamEvent(CCSPlayerController player, CommandInfo info, ref string message);
 
-    public event OnPlayerSayEvent? OnPlayerSayTeamPre;
+    public event OnPlayerSayTeamEvent? OnPlayerSayTeamPre;
 
-    public event OnPlayerSayEvent? OnPlayerSayTeam;
+    public event OnPlayerSayTeamEvent? OnPlayerSayTeam;
 
-    public event OnPlayerSayEvent? OnPlayerSayTeamPost;
+    public event OnPlayerSayTeamEvent? OnPlayerSayTeamPost;
 
     public string GetPrefix();