Resolve WES-181 "Missing code doc"

Assets/Common/Tests/PlayMode/CourseItemTests.cs

@@ -1,14 +1,20 @@
 using NUnit.Framework;
-using UnityEngine.UI;
 using System.Collections;
 using System.IO;
 using UnityEditor;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 using UnityEngine.TestTools;
+using UnityEngine.UI;
 
+/// <summary>
+/// Test the CourseItem class
+/// </summary>
 public class CourseItemTests
 {
+    /// <summary>
+    /// Setup the environment before each test
+    /// </summary>
     [UnitySetUp]
     public IEnumerator SetupFunction()
     {