Added preview tag back for oryx build docs

Author: hangwan97

articles/container-apps/TOC.yml

@@ -29,7 +29,7 @@
           href: deploy-visual-studio.md
         - name: Visual Studio Code
           href: deploy-visual-studio-code.md
-      - name: Deploy from artifact
+      - name: Deploy from artifact (preview)
         items:
         - name: Command line
           href: deploy-artifact.md
@@ -349,10 +349,10 @@
       - name: Get started using IntelliJ
         href: /azure/developer/java/toolkit-for-intellij/create-container-apps-intellij?toc=/azure/container-apps/toc.json&bc=/azure/container-apps/breadcrumb/toc.json
         displayName: java
-      - name: Automatic memory fitting
+      - name: Automatic memory fitting (preview)
         href: java-memory-fit.md
         displayName: java
-      - name: Build environment variables
+      - name: Build environment variables (preview)
         href: java-build-environment-variables.md
         displayName: java
       - name: Metrics

articles/container-apps/deploy-artifact.md

@@ -10,7 +10,7 @@ ms.date: 02/27/2024
 ms.custom: ignite-2023
 ---
 
-# Quickstart: Deploy an artifact file to Azure Container Apps
+# Quickstart: Deploy an artifact file to Azure Container Apps (preview)
 
 In this quickstart, you learn to deploy a container app from a prebuilt artifact file. The example in this article deploys a Java application using a JAR file, which includes a Java-specific manifest file. Your job is to create a backend web API service that returns a static collection of music albums. After completing this quickstart, you can continue to [Communication between microservices](communicate-between-microservices.md) to learn how to deploy a front end application that calls the API.
 

articles/container-apps/java-build-environment-variables.md

@@ -10,7 +10,7 @@ ms.date: 02/27/2024
 ms.author: cshoe
 ---
 
-# Build environment variables for Java in Azure Container Apps
+# Build environment variables for Java in Azure Container Apps (preview)
 
 Azure Container Apps uses [Buildpacks](https://buildpacks.io/) to automatically create a container image that allows you to deploy from your source code directly to the cloud. To take control of your build configuration, you can use environment variables to customize parts of your build like the JDK, Maven, and Tomcat. The following article shows you how to configure environment variables to help you take control over builds that automatically create a container for you.
 

articles/container-apps/java-memory-fit.md

@@ -10,7 +10,7 @@ ms.date: 02/27/2024
 ms.author: cshoe
 ---
 
-# Use memory efficiently for Java apps in Azure Container Apps
+# Use memory efficiently for Java apps in Azure Container Apps (preview)
 
 The Java Virtual Machine (JVM) uses memory conservatively as it assumes OS memory must be shared among multiple applications. However, your container app can optimize memory usage and make the maximum amount of memory possible available to your application. This memory optimization is known as Java automatic memory fitting. When memory fitting is enabled, Java application performance is typically improved between 10% and 20% without any code changes.