Update component checklist (#1860)

Author: colebemis

docs/content/drafts/PageLayout.mdx

@@ -253,9 +253,9 @@ See [storybook](https://primer.style/react/storybook?path=/story/layout-pagelayo
     adaptsToThemes: true,
     adaptsToScreenSizes: true,
     fullTestCoverage: false,
-    usedInProduction: false,
+    usedInProduction: true,
     usageExamplesDocumented: true,
-    hasStorybookStories: false,
+    hasStorybookStories: true,
     designReviewed: false,
     a11yReviewed: false,
     stableApi: false,