renaming

Author: James Lee

src/main/java/com/sparkTutorial/pairRdd/sort/SortedWorldCountProblem.java renamed to src/main/java/com/sparkTutorial/pairRdd/sort/SortedWordCountProblem.java

@@ -1,7 +1,7 @@
 package com.sparkTutorial.pairRdd.sort;
 
 
-public class SortedWorldCountProblem {
+public class SortedWordCountProblem {
 
     /* Create a Spark program to read the an article from in/word_count.text,
        output the number of occurrence of each word in descending order.

src/main/java/com/sparkTutorial/pairRdd/sort/SortedWorldCountSolution.java renamed to src/main/java/com/sparkTutorial/pairRdd/sort/SortedWordCountSolution.java

@@ -11,7 +11,7 @@
 
 import java.util.Arrays;
 
-public class SortedWorldCountSolution {
+public class SortedWordCountSolution {
 
     public static void main(String[] args) throws Exception {