Create documentation deploy workflow

.github/workflows/main.yml

@@ -0,0 +1,35 @@
+name: Build documentation website
+
+on: [workflow_run]
+
+permissions:
+  id-token: write
+
+env:
+  INSTANCE: 'Writerside/hi'
+  ARTIFACT: 'webHelpHI2-all.zip'
+  DOCKER_VERSION: '241.16003'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Build docs using Writerside Docker builder
+        uses: JetBrains/writerside-github-action@v4
+        with:
+          instance: ${{ env.INSTANCE }}
+          artifact: ${{ env.ARTIFACT }}
+          docker-version: ${{ env.DOCKER_VERSION }}
+          location: documentation-website
+
+      - name: Remove docs folder
+        run: rm -f docs
+
+      - name: Unzip artifact
+        run: unzip -O UTF-8 -qq '${{ env.ARTIFACT }}' -d docs
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6