ADD example2

.github/workflows/example2.yml

@@ -0,0 +1,22 @@
+name: Mosquitto Docker Action (example 2)
+
+on: [push]
+
+jobs:
+    publish-messages:
+        runs-on: ubuntu-latest
+
+        steps:
+        - name: Checkout repository
+          uses: actions/checkout@v2
+
+        - name: Set up Docker
+          uses: docker/setup-buildx-action@v1
+
+        - name: Run Mosquitto container
+          run: docker run -d --name mosquitto -p 1883:1883 eclipse-mosquitto
+
+        - name: Publish messages
+          run: |
+                docker exec mosquitto mosquitto_pub -h localhost -t test/topic -m "Hello, World!"
+                docker exec mosquitto mosquitto_pub -h localhost -t test/topic -m "Another message"