Update README.md: adding grouping and Select2 widget

README.md

@@ -1,17 +1,28 @@
-# extensions
+# List Extensions for Yii2, Officially Supported by Yii2 Dev Team.
 
-List extensions for Yii2.
+### Application Templates
 
 | Extension | Description |                     
 |-----------|-------------|
 | [app-advanced](https://github.com/yii2-extensions/app-avanced) | Advanced application template |
-| [app-basic](https://github.com/yii2-extensions/app-basic) | Basic application template |
+| [app-basic](https://github.com/yii2-extensions/app-basic) | Basic application template | 
+
+### Widgets
+
+| Extension | Description |                     
+|-----------|-------------|
 | [asset-bootstrap5](https://github.com/yii2-extensions/asset-bootstrap5) | Bootstrap 5 asset |
 | [asset-popper](https://github.com/yii2-extensions/asset-popper) | Popper asset |
 | [datetime-picker](https://github.com/yii2-extensions/datetime-picker) | Datetime picker widget |
 | [filepond](https://github.com/yii2-extensions/filepond) | Filepond widget |
-| [localeUrls](https://github.com/yii2-extensions/localeurls) | Automatic locale/language management through URLs |
-| [nested-set-behaviors](https://github.com/yii2-extensions/nested-sets-behaviors) | Nested sets behaviors |
 | [selectize](https://github.com/yii2-extensions/selectize) | Selectize widget |
+| [select2](https://github.com/yii2-extensions/select2) | Select2 widget |
 | [summernote](https://github.com/yii2-extensions/summernote) | Summernote widget |
 | [dynamicform](https://github.com/yii2-extensions/dynamicform) | Extension for Making Dynamic Forms |
+
+### Utilities
+
+| Extension | Description |                     
+|-----------|-------------|
+| [localeUrls](https://github.com/yii2-extensions/localeurls) | Automatic locale/language management through URLs |
+| [nested-set-behaviors](https://github.com/yii2-extensions/nested-sets-behaviors) | Nested sets behaviors |