docs: add APG grid link to useTagGroup doc (#7367)

* add APG grid link to useTagGroup doc

* add grid keywords to TagGroup

Author: mehm8128

packages/@react-aria/tag/docs/useTagGroup.mdx

@@ -23,7 +23,7 @@ import Anatomy from './anatomy.svg';
 
 ---
 category: Collections
-keywords: [tag, aria]
+keywords: [tag, aria, grid]
 ---
 
 # useTagGroup
@@ -32,7 +32,10 @@ keywords: [tag, aria]
 
 <HeaderInfo
   packageData={packageData}
-  componentNames={['useTagGroup']} />
+  componentNames={['useTagGroup']}
+  sourceData={[
+    {type: 'W3C', url: 'https://www.w3.org/WAI/ARIA/apg/patterns/grid/'}
+  ]} />
 
 ## API
 

packages/react-aria-components/docs/TagGroup.mdx

@@ -26,7 +26,7 @@ import {StarterKits} from '@react-spectrum/docs/src/StarterKits';
 
 ---
 category: Collections
-keywords: [tag, aria]
+keywords: [tag, aria, grid]
 type: component
 ---