Run black on all examples and require it for CI

examples/edits.py

@@ -3,6 +3,7 @@
 import discord
 import asyncio
 
+
 class MyClient(discord.Client):
     async def on_ready(self):
         print(f'Logged in as {self.user} (ID: {self.user.id})')
@@ -18,6 +19,7 @@ class MyClient(discord.Client):
         msg = f'**{before.author}** edited their message:\n{before.content} -> {after.content}'
         await before.channel.send(msg)
 
+
 intents = discord.Intents.default()
 intents.message_content = True