Update README.md

README.md

@@ -12,9 +12,32 @@ Note that the usage of Docker Desktop is subject to [Docker Desktop license agre
 In your GitHub Action workflow, you must use a [GitHub large-runner]([url](https://docs.github.com/en/actions/using-github-hosted-runners/about-larger-runners/about-larger-runners)) with virtualization enabled, and then you can add a step:
 
 ```
-  steps:
+jobs:
+  test-docker-desktop:
+    name: Test Docker Desktop installation and start
+    runs-on: large-ubuntu
+    steps:
       - id: start_desktop
-        uses: docker/desktop-action/start@v0.2.0
+        uses: docker/desktop-action/start@v0.3.0
 ```
 
 After this step executes, Docker Desktop is ready and available, the docker CLI can be executed in subsequent "run" steps
+
+By default, the action downloads the last version of Docker Desktop. But you can specify another one by providing the build URL from where the action can download the specific version:
+
+```
+jobs:
+  test-docker-desktop:
+    name: Test Docker Desktop installation and start
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ large-ubuntu ] 
+        build-url: [ "latest", "https://desktop.docker.com/linux/main/amd64/122432/docker-desktop-4.24.0-amd64.deb" ]
+
+    steps:
+      - name: Start Desktop
+        uses: ./start
+        with:
+          docker-desktop-build-url: ${{ matrix.build-url }}
+```