Implement discord.Message.reply

discord/ext/commands/context.py

@@ -322,3 +322,8 @@ class Context(discord.abc.Messageable):
                 return None
         except CommandError as e:
             await cmd.on_help_command_error(self, e)
+
+    async def reply(self, content=None, **kwargs):
+        return await self.message.reply(content, **kwargs)
+
+    reply.__doc__ = discord.Message.reply.__doc__