pages workflow for counter

.github/workflows/plot_matrix.yml

@@ -0,0 +1,29 @@
+name: plot_matrix
+on: push
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+concurrency:
+  group: "pages"
+  changel-in-progress: false
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+      - run: mkdir -p public
+      - run: ./plot_counter.py matrixcounter.json -o public/matrixcounter.pdf
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: 'public/'
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4