add workflows

.github/workflows/create-pr.yaml

@@ -0,0 +1,31 @@
+name: Build pull request
+on:
+  pull_request:
+    types: [opened, synchronize]
+jobs:
+  build-pull-request:
+    runs-on: ubuntu-latest
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - uses: actions/setup-node@v1 #this installs node and npm for us
+        with:
+          node-version: "10.x"
+      # Build the Angular application to the dist folder
+      - name: Build Angular application
+        run: |
+          cd kerberos.ng
+          npm install
+          npm run build
+      # Build the Docker image with the latest tag and the release tag
+      - name: Build Docker image
+        run: |
+          docker build -t uugai/kerberos-documentation:latest .