add concept of DaC

Author: austinmccollum

articles/sentinel/TOC.yml

@@ -131,7 +131,7 @@
     items:
     - name: Overview
       href: ci-cd-custom-content.md
-    - name: Deploy custom content from your repository
+    - name: Deploy content as code from your repository
       href: ci-cd.md   
     - name: Customize repository deployments
       href: ci-cd-custom-deploy.md

articles/sentinel/ci-cd-custom-content.md

@@ -17,7 +17,9 @@ ms.collection: usx-security
 
 # Manage content as code with Microsoft Sentinel repositories (public preview)
 
-The Microsoft Sentinel repositories feature provides a central experience for the deployment and management of Sentinel content as code. Repositories allow connections to an external source control for continuous integration / continuous delivery (CI/CD). This automation removes the burden of manual processes to update and deploy your custom content across workspaces. For more information on Sentinel content, see [About Microsoft Sentinel content and solutions](sentinel-solutions.md).
+The Microsoft Sentinel repositories feature provides a central experience for the deployment and management of Sentinel content as code. Repositories allow connections to an external source control for continuous integration / continuous delivery (CI/CD). This automation removes the burden of manual processes to update and deploy your custom content across workspaces. A subset of content as code is *detections* as code (DaC). Microsoft Sentinel **Repositories** implements DaC as well.
+
+For more information on Sentinel content, see [About Microsoft Sentinel content and solutions](sentinel-solutions.md).
 
 > [!IMPORTANT]
 > The Microsoft Sentinel **Repositories** feature is currently in **PREVIEW**. See the [Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/) for more legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability.

articles/sentinel/ci-cd.md

@@ -16,7 +16,7 @@ ms.collection: usx-security
 
 ---
 
-# Deploy custom content from your repository (Public preview)
+# Deploy content as code from your repository (Public preview)
 
 When creating custom content, you can manage it from your own Microsoft Sentinel workspaces, or an external source control repository. This article describes how to create and manage connections between Microsoft Sentinel and GitHub or Azure DevOps repositories. Managing your content in an external repository allows you to make updates to that content outside of Microsoft Sentinel, and have it automatically deployed to your workspaces. For more information, see [Update custom content with repository connections](ci-cd-custom-content.md).