clarify extension

Author: vherus

src/main/java/com/booleanuk/extension/Extension.java

@@ -40,7 +40,7 @@ public StringBuilder two() {
         StringBuilder sb = new StringBuilder();
 
         // 1. Using the sb variable above, add "Hello, world!" to the StringBuilder
-        // 2. After adding the message, reverse it
+        // 2. After adding the message, use an appropriate StringBuilder method to reverse it
         // WRITE YOUR CODE BETWEEN THIS LINE...