Updates Problems solved

Changes from percentage 100% to number of problems --> 68/68

Author: anishLearnsToCode

README.md

@@ -2,7 +2,7 @@
 
 ![HitCount](http://hits.dwyl.com/anishLearnsToCode/hackerrank-java.svg)
 ![made-with-java](https://img.shields.io/badge/Made%20with-Java-1f425f.svg)
-![problems-solved](https://img.shields.io/badge/Problems%20Solved-100%25-1abc9c.svg)
+![problems-solved](https://img.shields.io/badge/Problems%20Solved-68/68-1abc9c.svg)
 [![license](https://img.shields.io/badge/LICENSE-MIT-<COLOR>.svg)](LICENSE)
 ![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)
 [![hackerrank-python](https://img.shields.io/badge/hackerrank-python-1f72ff.svg)](https://github.com/anishLearnsToCode/hackerrank-python)
@@ -175,4 +175,4 @@ Quick Links ⚡ :
 | [Covariant Return Types](https://www.hackerrank.com/challenges/java-covariance) | [Solution](https://github.com/anishLearnsToCode/hackerrank-java/blob/master/src/CovariantReturnTypes.java) | Easy |
 | [Java Lambda Expressions](https://www.hackerrank.com/challenges/java-lambda-expressions) | [Solution](https://github.com/anishLearnsToCode/hackerrank-java/blob/master/src/JavaLambdaExpression.java) | Medium |
 | [Java MD5](https://www.hackerrank.com/challenges/java-md5) | [Solution](https://github.com/anishLearnsToCode/hackerrank-java/blob/master/src/MD5.java) | Medium |
-| [Java SHA-256](https://www.hackerrank.com/challenges/sha-256) | [Solution](https://github.com/anishLearnsToCode/hackerrank-java/blob/master/src/JavaSHA_256.java) | Medium |
+| [Java SHA-256](https://www.hackerrank.com/challenges/sha-256) | [Solution](https://github.com/anishLearnsToCode/hackerrank-java/blob/master/src/JavaSHA_256.java) | Medium |