Merge pull request #17968 from dphansen/davidph-custom-runtimes

Update Python custom runtime - fix doc bugs and general update

Author: Court72

docs/docfx.json

@@ -199,6 +199,7 @@
         "dma/**/*.md": ">= sql-server-2016 || >= sql-server-linux-2017 || = azuresqldb-current || = azuresqldb-mi-current || = azure-sqldw-latest || >= aps-pdw-2016",
         "dmx/**/*.md": ">= sql-server-2016",
         "integration-services/**/*.md": ">=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-current||=azuresqldb-mi-current",
+        "language-extensions/**/*.md": ">= sql-server-ver15 || >= sql-server-linux-ver15",
         "linux/**/*.md": ">= sql-server-2017 || >= sql-server-linux-2017",
         "machine-learning/**/*.md": ">= sql-server-2016",
         "master-data-services/**/*.md": ">= sql-server-2016",
@@ -220,6 +221,10 @@
         "tools/**/*.md": ">= sql-server-2016 || >= sql-server-linux-2017",
         "t-sql/**/*.md": "= azuresqldb-current || = azuresqldb-mi-current || >= sql-server-2016 || >= sql-server-linux-2017",
         "xquery/**/*.md": ">= sql-server-2016 || >= sql-server-linux-2017"
+      },
+      
+      "zone_pivot_group_filename": {
+        "machine-learning/**/*.md": "machine-learning/machine-learning-zone-pivot-groups.json"
       }
     },
 

docs/machine-learning/install/custom-runtime-python.md

@@ -56,9 +56,9 @@ Language Extensions use the extensibility framework for executing external code.
 
     - **Machine Learning Services and Language Extensions**
 
-       Select **Machine Learning Services and Language Extensions**. There's no need to select R.
+        Select **Machine Learning Services and Language Extensions**. There's no need to select R.
 
-    ![SQL Server 2019 CU3 or later installation features](../install/media/sql-feature-selection.png)
+        :::image type="content" source="media/2019-setup-language-extensions.png" alt-text="SQL Server 2019 Language Extensions setup.":::
 
 1. On the **Ready to Install** page, verify that these selections are included, and select **Install**.
 

docs/machine-learning/install/custom-runtime-r.md

@@ -0,0 +1,19 @@
+# YamlMime:ZonePivotGroups
+# GitHub repository = 'MicrosoftDocs/sql-docs-pr/docs/machine-learning'
+groups:
+- id: python-custom-runtime-platform
+  title: Platform
+  prompt: Choose your platform
+  pivots:
+  - id: python-custom-runtime-windows
+    title: Windows
+  - id: python-custom-runtime-linux
+    title: Linux
+- id: r-custom-runtime-platform
+  title: Platform
+  prompt: Choose your platform
+  pivots:
+  - id: r-custom-runtime-windows
+    title: Windows
+  - id: r-custom-runtime-linux
+    title: Linux