docs(index): add PR review and dependency governance to Wake up to results (#910)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jamesadevine <4742697+jamesadevine@users.noreply.github.com>

Author: Copilot

site/src/content/docs/index.mdx

@@ -81,6 +81,12 @@ Vulnerabilities patched. Docs updated. Broken builds diagnosed and fixed. By the
   <Card title="Work item triage" icon="list-format">
     Stale issues get flagged, duplicates get linked, and priorities get suggested -- every day.
   </Card>
+  <Card title="Codebase-aware PR review" icon="comment">
+    An agent reviews every pull request against your codebase's conventions, flagging regressions and suggesting fixes inline.
+  </Card>
+  <Card title="Dependency governance" icon="puzzle">
+    Flagged components get triaged, vulnerable dependencies get patched, and upgrade PRs land before the next audit.
+  </Card>
 </CardGrid>
 
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