Adds documentation about name templates in grid editors

Getting-Started/Backoffice/Property-Editors/Built-in-Property-Editors/Grid-Layout/Grid-Editors.md

@@ -1,5 +1,5 @@
 ---
-versionFrom: 7.0.0
+versionFrom: 7.2.0
 ---
 
 # Grid Editors
@@ -62,6 +62,15 @@ For a grid editor, the required values are:
 - `icon`: Icon shown to the editor, uses same icon classes as the rest of
 - `view` the view defines the editor used to enter a value. By default Umbraco will look in `/umbraco/views/propertyeditors/grid/editors` for a html view to use - but you can pass in your own path
 
+:::tip
+In **Umbraco 8.4** you can also add a name template for generating grid item labels using the syntax `{{ value.propertyAlias }}`.
+
+- If you would like to include the index position in the label, you can use `{{$index}}`.
+- If your editor links to a content, media or member node, you can use the Angular filter `{{ value.udi | ncNodeName }}` to show the node name rather than the node ID.
+- If your editor is a rich text editor, you can use the Angular filter `{{ value | ncRichText }}` to show the unformatted text.
+:::
+
+
 The built-in views you can use are:
 
 - `textstring`