Fix typo in Treap node docstringfix: remove accidental typo in Node class docstring

Author: maitriupadhyay03-cell

data_structures/binary_tree/treap.py

@@ -5,7 +5,7 @@
 
 class Node:
     """
-    Treap's nodeh
+    Treap's node
     Treap is a binary tree by value and heap by priority
     """