docs: Add Aster's notebook to showcase.md (#912)

Aster Hu

2024-02-22 916aedce40864a485724d9df78879e8d130beab3

 .github/workflows/ci.yaml

@@ -43,5 +43,11 @@
      - 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

      - name: Create release tag
        uses: Klemensas/action-autotag@stable
        with:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
          tag_prefix: "v"