readme example update

Author: nielslyngsoe

packages/uui-form/README.md

@@ -16,7 +16,7 @@ Preview the component on [Storybook](https://uui.umbraco.com/?path=/story/uui-fo
 npm i @umbraco-ui/uui-form
 ```
 
-Import the registration of `<form is="uui-form">` via:
+Import the registration of `<uui-form>` via:
 
 ```javascript
 import '@umbraco-ui/uui-form/lib';
@@ -31,5 +31,7 @@ import { UUIFormElement } from '@umbraco-ui/uui-form/lib';
 ## Usage
 
 ```html
-<form is="uui-form"></form>
+<uui-form>
+  <form>...</form>
+</uui-form>
 ```