Update wiki regex (require two backticks)

Author: Lpsd

wiki/wiki.py

@@ -253,7 +253,7 @@ async def on_message_without_command(self, ctx):
         if ctx.channel.id not in channels:
             return
 
-        ticks = re.findall(r'\`(.*?)\`', ctx.content)
+        ticks = re.findall(r'\`\`([a-zA-Z]{2,}?)\`\`', ctx.content)
 
         while("" in ticks):
             ticks.remove("")