Final Refactor of Module class

src/Module.java

 public class Module {
 
+    /*
+    This class holds the lesson objects and enables the user to pick from them. It has been designed so that it
+    can be replicated and extended to include Courses. This is expanded upon in the ReadMe.
+     */
+
     private Lesson[] lessons;
 
     public Module(Lesson[] lessons) {
@@ -10,17 +15,15 @@ public class Module {
 
     /**
      * Returns a lesson from the Lesson array depending on User input
-     * User starts choice at 1 rather than 0 so this needs to be translated to arrays
+     * User starts choice at 1 rather than 0 so this needs to be translated to arrays with base 0
      * @param choice
-     * @return
+     * @return Lesson object
      */
     public Lesson getLesson(int choice) {
         return lessons[choice - 1];
     }
 
-    /* This is only called in one place so rather than a getter and then call .length it
-       has been combined here for readability.
-     */
+    // Rather than have a getter and then call .length on it, it has been combined here for readability.
     public int getLessonsArrayLength() {
         return lessons.length;
     }