docs(treeview): split data binding article

Author: marin-bratanov

_config.yml

@@ -57,6 +57,9 @@ navigation:
      "*components/animationcontainer":
         title: "Animation Container"
         position: 2000000
+     "*components/treeview/data-binding":
+        title: "Data Binding"
+        position: 2
 
 ## List helpers directory names and order here, like this:
      "*appearance":

_contentTemplates/treeview/basic-example.md

@@ -1,4 +1,4 @@
-#basic-example-with-screenshot
+#basic-example
 
 ````CSHTML
 @using Telerik.Blazor.Components.TreeView
@@ -102,8 +102,9 @@
 }
 ````
 
->caption The result from the snippet above
+#end
 
-![](images/treeview-overview.png)
+#data-binding-basics-link
+Before continuing, make sure you are familiar with the [treeview data binding basics]({%slug components/treeview/data-binding/overview%}).
+#end
 
-#end