update integration doc

Author: streamtw

docs/integration.md

@@ -48,46 +48,46 @@ Check `vendor/unisharp/laravel-filemanager/src/views/demo.blade.php`, which alre
     ```
 
 ### Option 2: TinyMCE4
-```html
-<script src="//cdn.tinymce.com/4/tinymce.min.js"></script>
-<textarea name="content" class="form-control my-editor">{!! old('content', $content) !!}</textarea>
-<script>
-  var editor_config = {
-    path_absolute : "/",
-    selector: "textarea.my-editor",
-    plugins: [
-      "advlist autolink lists link image charmap print preview hr anchor pagebreak",
-      "searchreplace wordcount visualblocks visualchars code fullscreen",
-      "insertdatetime media nonbreaking save table contextmenu directionality",
-      "emoticons template paste textcolor colorpicker textpattern"
-    ],
-    toolbar: "insertfile undo redo | styleselect | bold italic | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | link image media",
-    relative_urls: false,
-    file_browser_callback : function(field_name, url, type, win) {
-      var x = window.innerWidth || document.documentElement.clientWidth || document.getElementsByTagName('body')[0].clientWidth;
-      var y = window.innerHeight|| document.documentElement.clientHeight|| document.getElementsByTagName('body')[0].clientHeight;
-
-      var cmsURL = editor_config.path_absolute + 'laravel-filemanager?field_name=' + field_name;
-      if (type == 'image') {
-        cmsURL = cmsURL + "&type=Images";
-      } else {
-        cmsURL = cmsURL + "&type=Files";
+  ```html
+  <script src="//cdn.tinymce.com/4/tinymce.min.js"></script>
+  <textarea name="content" class="form-control my-editor">{!! old('content', $content) !!}</textarea>
+  <script>
+    var editor_config = {
+      path_absolute : "/",
+      selector: "textarea.my-editor",
+      plugins: [
+        "advlist autolink lists link image charmap print preview hr anchor pagebreak",
+        "searchreplace wordcount visualblocks visualchars code fullscreen",
+        "insertdatetime media nonbreaking save table contextmenu directionality",
+        "emoticons template paste textcolor colorpicker textpattern"
+      ],
+      toolbar: "insertfile undo redo | styleselect | bold italic | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | link image media",
+      relative_urls: false,
+      file_browser_callback : function(field_name, url, type, win) {
+        var x = window.innerWidth || document.documentElement.clientWidth || document.getElementsByTagName('body')[0].clientWidth;
+        var y = window.innerHeight|| document.documentElement.clientHeight|| document.getElementsByTagName('body')[0].clientHeight;
+
+        var cmsURL = editor_config.path_absolute + 'laravel-filemanager?field_name=' + field_name;
+        if (type == 'image') {
+          cmsURL = cmsURL + "&type=Images";
+        } else {
+          cmsURL = cmsURL + "&type=Files";
+        }
+
+        tinyMCE.activeEditor.windowManager.open({
+          file : cmsURL,
+          title : 'Filemanager',
+          width : x * 0.8,
+          height : y * 0.8,
+          resizable : "yes",
+          close_previous : "no"
+        });
       }
+    };
 
-      tinyMCE.activeEditor.windowManager.open({
-        file : cmsURL,
-        title : 'Filemanager',
-        width : x * 0.8,
-        height : y * 0.8,
-        resizable : "yes",
-        close_previous : "no"
-      });
-    }
-  };
-
-  tinymce.init(editor_config);
-</script>
-```
+    tinymce.init(editor_config);
+  </script>
+  ```
 
 ##Standalone button
 If you are going to use filemanager independently, meaning set the value of an input to selected photo/file url, follow this structure: