Fix pydocstyle issues and enable in tox

custom_components/localtuya/discovery.py

@@ -72,6 +72,7 @@ async def discover(timeout, loop):
 
 
 def main():
+    """Run discovery and print result."""
     loop = asyncio.get_event_loop()
     res = loop.run_until_complete(discover(5, loop))
     print(res)