Resolve WES-181 "Missing code doc"

Assets/Common/Tests/EditMode/ModelListTests.cs

@@ -1,12 +1,16 @@
 using NatML;
 using NUnit.Framework;
 using UnityEngine;
+
 /// <summary>
 /// Test the ModelList class
 /// </summary>
 [TestFixture]
 public class ModelListTests
 {
+    /// <summary>
+    /// Reference to the model list, for quick access
+    /// </summary>
     private ModelList modelList;
 
     /// <summary>
@@ -35,6 +39,7 @@ public class ModelListTests
             }
         }
     }
+
     /// <summary>
     /// Check if current model can be correctly gotten as current via GetCurrentModel
     /// </summary>