Update README.md

Author: techieJarek

README.md

@@ -72,5 +72,5 @@ Given a string s, find the longest palindromic substring in s.
 [**ReverseInteger.java**](https://github.com/techieJarek/coding-problems/blob/master/ReverseInteger.java) - 
 Given a 32-bit signed integer, reverse digits of an integer.
 
-[**NeedleInAHaystack.java**](https://github.com/techieJarek/coding-problems/blob/master/NeedleInAHaystack.java)
+[**NeedleInAHaystack.java**](https://github.com/techieJarek/coding-problems/blob/master/NeedleInAHaystack.java) - 
 Return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.