Add intro for deployments

Author: ggailey777

articles/azure-functions/flex-consumption-how-to.md

@@ -160,6 +160,8 @@ To support your function code, you need to create three resources:
 ---
 
 ## Deploy your code project
+
+For deployment, Flex Consumption plan apps use a Blob storage container to host .zip package files that contain your project code and all libraries that are required for your app to run. For more information, see [Deployment](flex-consumption-plan.md#deployment).
 ::: zone pivot="programming-language-java" 
 You can skip this section if you choose to instead [create and deploy your app using Maven](#create-and-deploy-your-app-using-maven).   
 ::: zone-end