Added :param:

Author: evaherrada

adafruit_io/adafruit_io.py

@@ -221,6 +221,7 @@ def remove_feed_callback(self, feed_key):
     def loop(self, timeout=1):
         """Manually process messages from Adafruit IO.
         Call this method to check incoming subscription messages.
+        :param int timeout: Socket timeout, in seconds.
 
         Example usage of polling the message queue using loop.