Small Fixes for Setup Wizard

Editor/WelcomeScreen/WelcomeScreen.Setup.cs

                 if (GUILayout.Button("Create GameplayIngredientsSettings Asset"))
                 {
                     bool create = true;
-                    if(System.IO.File.Exists(Application.dataPath +"/"+ kSettingsAssetPath))
+                    if(System.IO.File.Exists(Application.dataPath +"/../"+ kSettingsAssetPath))
                     {
                         if (!EditorUtility.DisplayDialog("GameplayIngredientsSettings Asset Overwrite", "A GameplayIngredientsSettings Asset already exists, do you want to overwrite it?", "Yes", "No"))
                             create = false;
                     {
-                        if(!System.IO.Directory.Exists(Application.dataPath+"/Assets/Resources"))
+                        if(!System.IO.Directory.Exists(Application.dataPath+"/Resources"))
                             AssetDatabase.CreateFolder("Assets", "Resources");
 
                         GameplayIngredientsSettings asset = Instantiate<GameplayIngredientsSettings>(GameplayIngredientsSettings.defaultSettings);

Editor/WelcomeScreen/WelcomeScreen.cs

         const int WindowWidth = 640;
         const int WindowHeight = 520;
 
+        static WelcomeScreen s_Instance;
+
         static bool showOnStartup
         {
             get { return EditorPrefs.GetBool(kShowOnStartupPreference, true); }
         [MenuItem("Window/Gameplay Ingredients")]
         static void ShowFromMenu()
         {
-            GetWindow<WelcomeScreen>(true, "Gameplay Ingredients");
+            s_Instance = GetWindow<WelcomeScreen>(true, "Gameplay Ingredients");
         }
 
         private void OnEnable()
                 wizardMode = WizardMode.FirstTimeSetup;
 
             InitTips();
+        }
+
+        private void OnDisable()
+        {
+            if (s_Instance != null)
+                s_Instance.Close();
         }
 
         private void OnDestroy()