remove asyncio boilerplate, mention python -m asyncio requirement

README.rst

@@ -37,10 +37,12 @@ Installing
 Creating a client
 -----------------
 
+
+Use ``python -m asyncio`` in order to run those examples
+
 .. code-block:: python
 
     from telethon import Client, events
-    import asyncio
 
     # These example values won't work. You must get your own api_id and
     # api_hash from https://my.telegram.org, under API Development.
@@ -48,12 +50,8 @@ Creating a client
     api_hash = '0123456789abcdef0123456789abcdef'
 
 
-    async def main():
-        async with Client('session_name', api_id, api_hash) as client:
-            await client.interactive_login()
-
-
-    asyncio.run(main())
+    async with Client('session_name', api_id, api_hash) as client:
+        await client.interactive_login()
 
 
 Doing stuff