Added repeated string hackerrank solution

Added repeated string hackerrank problem optimal solution

Author: kanahaiya

README.md

@@ -330,7 +330,7 @@ then you are at the right place. :)
 |      Basic Programming      | [Equalize the Array](https://www.hackerrank.com/challenges/equality-in-a-array/problem)                          		     | [EqualizeTheArray.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/EqualizeTheArray.java)             		    |  [Tutorial](https://youtu.be/hDhf04AJIRs)			         |
 |      Basic Programming      | [Designer PDF Viewer](https://www.hackerrank.com/challenges/designer-pdf-viewer/problem)                         		     | [DesignerPDFViewer.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/DesignerPDFViewer.java)                    	|       											         |
 |      Basic Programming      | [Forming a Magic Square](https://www.hackerrank.com/challenges/magic-square-forming/problem)                         		 | [FormingAMagicSquare.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/FormingAMagicSquare.java)               	|       											         |
-|      Basic Programming      | [Repeated String](https://www.hackerrank.com/challenges/repeated-string/problem)                                 			 | [RepeatedString.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/RepeatedString.java)             		        |       											         |
+|      Basic Programming      | [Repeated String](https://www.hackerrank.com/challenges/repeated-string/problem)                                 			 | [RepeatedString.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/RepeatedString.java)             		        |  [Tutorial](https://youtu.be/d5xLkTvJDWY)   		         |
 |      Basic Programming      | [Bitwise AND](https://www.hackerrank.com/challenges/linkedin-practice-bitwise-and/problem)                                 	 | [BitwiseAND.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/BitwiseAND.java)             		       			|       											         |
 |      Basic Programming      | [Divisible Pairs Sum](https://www.hackerrank.com/challenges/linkedin-practice-divisible-sum-pairs/problem)       		     | [DivisiblePairsSum.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/DivisiblePairsSum.java)                    	|       											         |
 |      Basic Programming      | [Append and Delete](https://www.hackerrank.com/challenges/append-and-delete/problem)                             		     | [AppendAndDelete.java](https://github.com/Java-aid/Hackerrank-Solutions/tree/master/HackerRankDashboard/CoreCS/GeneralProgramming/src/main/java/com/javaaid/hackerrank/solutions/generalprogramming/basicprogramming/AppendAndDelete.java)             		        |       											         |