update param doc

Author: Ogban Ugot

avenieca/consumer.py

@@ -23,7 +23,7 @@ def consume(self, func, sync_once=False):
         """
         :param func: handler to process received messages
         :param sync_once: run consume loop once
-        :return: none
+        :return: None
         """
         for msg in self.client:
             byte_val = msg.value

avenieca/producers/__init__.py

@@ -1,2 +1,2 @@
 from avenieca.producers.stream import *
-from avenieca.producers.event import *
+from avenieca.producers.event import *