Update README.md

Added one more coding problem ofWissen infotech hiring challenge

Author: kanahaiya

README.md

@@ -8,6 +8,7 @@
 |    1    |          Goldman Sachs			 | [Number Checker](https://github.com/Java-aid/Interview-Preparations/blob/master/ProblemStatements/Goldman%20Sachs/Goldman%20Sachs%20Online%20Assessment%20__%20powered%20by%20HackerRank1.pdf)           												    | [NumberChecker.java](https://github.com/Java-aid/Interview-Preparations/blob/master/InterviewsPreparation/src/main/java/com/javaaid/interviews/preparation/goldmansachs/NumberChecker.java)                       										   |
 |    2    |          Goldman Sachs			 | [Number Patterns & finding the possible smallest numeric value](https://github.com/Java-aid/Interview-Preparations/blob/master/ProblemStatements/Goldman%20Sachs/Goldman%20Sachs%20Online%20Assessment%20__%20powered%20by%20HackerRank2.pdf)            	| [MNStringSolution.java](https://github.com/Java-aid/Interview-Preparations/blob/master/InterviewsPreparation/src/main/java/com/javaaid/interviews/preparation/goldmansachs/MNStringSolution.java)                              							   |
 |    3    |         Wissen Infotech			 | [Special Array Conversion](https://github.com/Java-aid/Interview-Preparations/blob/master/ProblemStatements/Wissen%20Infotech/Wissen_SpecialArrayConversion_hackerEarth_problem.jpg)           												  			    | [SpecialArrayConversion.java](https://github.com/Java-aid/Interview-Preparations/blob/master/InterviewsPreparation/src/main/java/com/javaaid/interviews/preparation/wisseninfotech/SpecialArrayConversion.java)                       					   |
+|    3    |         Wissen Infotech			 | [Stats](https://github.com/Java-aid/Interview-Preparations/blob/master/ProblemStatements/Wissen%20Infotech/WissenCodingProblem2_stats.png)           												  			    | [Stats.java](https://github.com/Java-aid/Interview-Preparations/blob/master/InterviewsPreparation/src/main/java/com/javaaid/interviews/preparation/wisseninfotech/Stats.java)                       					   |
 |    4    |           Cleartrip			     | [Strings Chains](https://github.com/Java-aid/Interview-Preparations/blob/master/ProblemStatements/Cleartrip/StringChains_cleartrip_hackerrank_test.docx)           												  			  							    | [StringChain.java](https://github.com/Java-aid/Interview-Preparations/blob/master/InterviewsPreparation/src/main/java/com/javaaid/interviews/preparation/cleartrip/StringChain.java)                       					 							   |
 |    5    |             Temnos			     | [Raju and marriage ceremony](https://github.com/Java-aid/Interview-Preparations/blob/master/ProblemStatements/Temnos/Coding%20Test_Techgig_Temnos.pdf)           												  			  							    | [RajuMarriage.java](https://github.com/Java-aid/Interview-Preparations/blob/master/InterviewsPreparation/src/main/java/com/javaaid/interviews/preparation/temnos/RajuMarriage.java)                       					 							   |
 |    6    |             Spraoi			     | [Coin Change problem](https://github.com/Java-aid/Interview-Preparations/blob/master/ProblemStatements/Sproai/spraoi_Q1.docx)           												  			  							   							    | [CoinChange.java](https://github.com/Java-aid/Interview-Preparations/blob/master/InterviewsPreparation/src/main/java/com/javaaid/interviews/preparation/spraoi/CoinChange.java)                       					 							       |