Updated the requested changes

Author: NAVJOT-786

dsa-solutions/lc-solutions/0000-0099/0019.Remove-N-Node-From-end-of-list.md

@@ -131,7 +131,7 @@ var removeNthFromEnd = function(head, n) {
     return res.next;    
 };
 ```
-##Step by Step Algorithm
+## Step by Step Algorithm
 1: Initialize variables:
 
    - We create a dummy node res with a value of 0 and set its next pointer to the head of the original list. This dummy node helps in handling edge cases when removing the first node.