Update deployment notes for Python and Java apps

Add note about Java app support limitations for run from package.

Author: toanms

articles/app-service/deploy-run-package.md

@@ -15,6 +15,8 @@ ms.service: azure-app-service
 
 > [!NOTE]
 > Run from package is not supported for Python apps. When deploying a ZIP file of your Python code, you need to set a flag to enable Azure build automation. The build automation will create the Python virtual environment for your app and install any necessary requirements and package needed. See [build automation](quickstart-python.md?tabs=flask%2Cmac-linux%2Cazure-cli%2Czip-deploy%2Cdeploy-instructions-azportal%2Cterminal-bash%2Cdeploy-instructions-zip-azcli#enable-build-automation) for more details.
+>
+> Run from package is also not supported for Java apps on Azure App Service. Built‑in Java runtimes (Java SE, Tomcat, and JBoss EAP) require write access to the app directory at startup, while Run from package mounts the app content as a read‑only filesystem.
 
 In [Azure App Service](overview.md), you can run your apps directly from a deployment ZIP package file. This article shows how to enable this functionality in your app.