update checklist (#4607)

Author: broccolinisoup

docs/content/drafts/PageHeader.mdx

@@ -316,15 +316,15 @@ import {PageHeader} from '@primer/react/drafts'
     noUnnecessaryDeps: true,
     adaptsToThemes: true,
     adaptsToScreenSizes: true,
-    fullTestCoverage: false,
-    usedInProduction: false,
-    usageExamplesDocumented: false,
-    hasStorybookStories: false,
-    designReviewed: false,
-    a11yReviewed: false,
+    fullTestCoverage: true,
+    usedInProduction: true,
+    usageExamplesDocumented: true,
+    hasStorybookStories: true,
+    designReviewed: true,
+    a11yReviewed: true,
     stableApi: false,
-    addressedApiFeedback: false,
-    hasDesignGuidelines: false,
+    addressedApiFeedback: true,
+    hasDesignGuidelines: true,
     hasFigmaComponent: false,
   }}
 />

packages/react/src/PageHeader/PageHeader.docs.json

@@ -2,7 +2,7 @@
   "id": "drafts_page_header",
   "name": "PageHeader",
   "status": "draft",
-  "a11yReviewed": false,
+  "a11yReviewed": true,
   "stories": [],
   "importPath": "@primer/react/experimental",
   "props": [