README: Add "Example" section

Author: Turbo87

README.md

@@ -12,6 +12,41 @@ npx tagless-ember-components-codemod
 ```
 
 
+Example
+------------------------------------------------------------------------------
+
+```js
+import Component from '@ember/component';
+
+export default Component.extend({
+  tagName: 'button',
+  attributeBindings: ['disabled', 'disabled:aria-disabled'],
+  classNames: ['custom-button'],
+  classNameBindings: ['blue:blue:red'],
+});
+```
+
+```hbs
+{{@text}}
+```
+
+will be migrated to:
+
+```js
+import Component from '@ember/component';
+
+export default Component.extend({
+  tagName: '',
+});
+```
+
+```hbs
+<button disabled={{disabled}} aria-disabled={{disabled}} class="custom-button {{if this.blue "blue" "red"}}">
+  {{@text}}
+</button>
+```
+
+
 License
 ------------------------------------------------------------------------------