docs(eds-core-react): add beta warning and usage examples to Radio stories

Author: pomfrida

packages/eds-core-react/src/components/next/Radio/Radio.stories.tsx

@@ -15,8 +15,28 @@ const meta: Meta<typeof Radio> = {
   parameters: {
     docs: {
       description: {
-        component:
-          'Radio button component using vanilla CSS and EDS tokens. Uses Field internally for layout and accessibility.',
+        component: `**⚠️ Beta Component** - This component is under active development and may have breaking changes.
+
+\`\`\`bash
+npm install @equinor/eds-core-react@beta
+\`\`\`
+
+\`\`\`tsx
+import { Radio } from '@equinor/eds-core-react/next'
+
+// Radio group
+<fieldset>
+  <legend>Select option</legend>
+  <Radio label="Option 1" name="group" value="1" />
+  <Radio label="Option 2" name="group" value="2" />
+</fieldset>
+
+// Without visible label (use aria-label)
+<Radio aria-label="Select row" name="table-row" />
+\`\`\`
+
+Radio buttons allow users to select one option from a set. Always use within a group with the same \`name\` attribute.
+`,
       },
       source: {
         excludeDecorators: true,