Setup github action

.github/workflows/main.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: build
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the "main" branch
+  release:
+    types: [published]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  pippo:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v3
+
+      # Runs a single command using the runners shell
+      - name: Build html
+        run: ./build.sh
+
+      - name: Check html
+        run: cat ./build/index.html