Update lessons/insertion.md

Abhijit25Mishra · Utkarsh1504 · web-flow · commit eb637ca10f06 · 2021-10-01T22:37:32.000+05:30
Co-authored-by: Utkarsh Mishra &lt;76392681+Utkarsh1504@users.noreply.github.com&gt;
diff --git a/lessons/insertion.md b/lessons/insertion.md
@@ -112,7 +112,8 @@ Now our array is sorted.
 
 you can visualize this at [hackerearth](https://www.hackerearth.com/practice/algorithms/sorting/insertion-sort/visualize/) 
 
-### Advantages
+## Advantages
+``
 
 
 
