Update README.md

vineeth12345 · web-flow · commit 3fc7437b36f6 · 2019-10-07T15:03:19.000+05:30
diff --git a/README.md b/README.md
@@ -21,7 +21,7 @@ Contains all data structure questions categorised into sub-directories like stac
     5. Stack  
     6. Graphs  
     7. Circular Linked List
-
+    8.Avl Tree 
 ### Algorithms
 
 Contains algorithm-based questions like dynamic programming, greedy etc.
