Add github action

.github/workflows/docker-publish.yml

@@ -0,0 +1,26 @@
+name: Build and Push Docker Image
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build_and_push:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out the repo
+      uses: actions/checkout@v2
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKER_HUB_USERNAME }}
+        password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./Dockerfile
+        push: true
+        tags: jibla/hn-bot:latest