Update Exercise-54-Priority_queue_simple.py

Author: imsanjoykb

Exercise-54-Priority_queue_simple.py

@@ -1,5 +1,5 @@
 # Priority Queue is an extension of the queue with following properties.
-# 1) An element with high priority is dequeued before an element with low priority.
+## 1) An element with high priority is dequeued before an element with low priority.
 ## 2) If two elements have the same priority, they are served according to their order in the queue
 ## The delete operation has time complexity of O(n)