docs: private nuget source

Author: dansiegel

docs/pipelines/commercial-plus.md

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+---
+uid: Pipelines.CommercialPlus
+---
+
+# Setting up the Commercial Plus private NuGet Feed
+
+## [GitHub Actions](#tab/github)
+
+First be sure to add the Prism NuGet feed and your credentials as secrets in GitHub.
+
+PRISM_NUGET_FEED: `https://nuget.prismlibrary.com/v3/index.json
+PRISM_NUGET_USER: The email of the licensed user
+PRISM_NUGET_API_KEY: The License Key you have generated on https://prismlibrary.com
+
+```yml
+- name: Add NuGet Feed
+  shell: pwsh
+  run: |
+    dotnet nuget add source ${{ secrets.PRISM_NUGET_FEED }} -u ${{ secrets.PRISM_NUGET_USER }} -p ${{ secrets.PRISM_API_KEY }} -n InHouse --store-password-in-clear-text
+```
+
+## [Azure Pipelines](#tab/azure-pipelines)
+
+Go to your project Settings -> Service connections. Then add a `New service connection` and select `NuGet` then click Next. Be sure to select `Basic Authentication`
+
+Feed URL: `https://nuget.prismlibrary.com`
+Username: The email of the licensed user
+Password: The License Key you have generated on https://prismlibrary.com
+Service connection name: This can be anything. For the sample below you will see we have set this to `Prism`
+
+```yml
+- task: NuGetAuthenticate@1
+  inputs:
+    nuGetServiceConnections: 'Prism'
+```
+
+---

docs/pipelines/toc.yml

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+- name: Commercial Plus
+  href: commercial-plus.md

docs/toc.yml

@@ -22,3 +22,5 @@
   href: magician/toc.yml
 - name: Plugins
   href: plugins/toc.yml
+- name: Pipelines
+  href: pipelines/toc.yml