refactor 500

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_500.java

@@ -1,22 +1,22 @@
 package com.fishercoder.solutions;
 
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
 /**
+ * 500. Keyboard Row
+ *
  * Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below.
- * <p>
- * <p>
+ *
  * American keyboard
- * <p>
- * <p>
+ *
  * Example 1:
  * Input: ["Hello", "Alaska", "Dad", "Peace"]
  * Output: ["Alaska", "Dad"]
+ *
  * Note:
  * You may use one character in the keyboard more than once.
  * You may assume the input string will only contain letters of alphabet.