Merge pull request #221846 from bmansheim/patch-2

Format next step as action button

Author: prmerger-automator[bot]

articles/container-instances/container-instances-tutorial-prepare-app.md

@@ -126,7 +126,8 @@ In this tutorial, you created a container image that can be deployed in Azure Co
 
 Advance to the next tutorial in the series to learn about storing your container image in Azure Container Registry:
 
-[Push image to Azure Container Registry](container-instances-tutorial-prepare-acr.md)
+> [!div class="nextstepaction"]
+> [Push image to Azure Container Registry](container-instances-tutorial-prepare-acr.md)
 
 <!--- IMAGES --->
 [aci-tutorial-app]:./media/container-instances-quickstart/aci-app-browser.png