Update TextArea.mdx (#26225)

clarify form validation text

Co-authored-by: Clarity-89 <homes89@ukr.net>

packages/grafana-ui/src/components/TextArea/TextArea.mdx

@@ -12,7 +12,7 @@ Use for multi line inputs like descriptions.
 
 
 ### Usage in forms with Field
 ### Usage in forms with Field
 
 
-`TextArea` should be used with the `Field` component to get labels and descriptions. It should also be used for validation. See the `Field` component for more information.
+`TextArea` should be used with the `Field` component to get labels and descriptions. It can also be used for validation by using the `required` attribute. See the `Field` component for more information.
 
 
 ```jsx
 ```jsx
 <Field label="Important information" description="This information is very important, so you really need to fill it in">
 <Field label="Important information" description="This information is very important, so you really need to fill it in">