Update Queue resource to return a tuple of data and HTTP response cod…

…e plus update docs

api/api.py

@@ -132,28 +132,32 @@ def get(self, queue: str, number: int) -> tuple:
             item (int): The number of the item requested.
 
         Returns:
-            tuple: Response containing queue as JSON and HTTP response code.
+            tuple: Item as JSON and HTTP response code.
         """
         return (ECNQueue.Item(queue, number).toJson(), 200)
 
 class Queue(Resource):
     @jwt_required
-    def get(self, queue: str) -> str:
+    def get(self, queues: str) -> tuple:
         """Returns the JSON representation of the queue requested.
 
+        Return Codes:
+                200 (OK): On success.
+                500 (Internal Server Error): On API error.
+
         Args:
-            queue (str): The queue requested.
+            queues (str): Plus (+) deliminited list of queues.
 
         Returns:
-            str: JSON representation of the queue requested.
+            tuple: Queues as JSON and HTTP response code.
         """
-        queues_requested = queue.split("+")
+        queues_requested = queues.split("+")
 
-        queues = []
+        queue_list = []
         for queue in queues_requested:
-            queues.append(ECNQueue.Queue(queue).toJson())
+            queue_list.append(ECNQueue.Queue(queue).toJson())
 
-        return queues
+        return (queues, 200)
 
 class QueueList(Resource):
     @jwt_required