docs(showcase): fix pull request redirect link (#500)

Ben Schlegel

2023-09-22 d93599364a3dd0b46068826cf14ed7b25aa59fc3

 .github/workflows/ci.yaml

@@ -43,5 +43,5 @@
      - name: Test
        run: npm test

      - name: Ensure Quartz builds
        run: npx quartz build
      - name: Ensure Quartz builds, check bundle info
        run: npx quartz build --bundleInfo