Update nest-asyncio/README.md

nest-asyncio/README.md

@@ -1,5 +1,4 @@
 ```python
-''
 import asyncio
 (loop := asyncio.get_event_loop()).__class__._check_running = lambda _: None
 def _run_once(self):
@@ -10,7 +9,7 @@ def _run_once(self):
         tasks[self] = task
 loop.__class__._run_once = _run_once
 asyncio.run = loop.run_until_complete
-''
+
 async def hello():
     async def world(): print('hello')
     asyncio.run(world()) or print('world')