Linenos test moved to UI Components as a child of Code

docs/ui-components/code.md

@@ -2,6 +2,7 @@
 layout: default
 title: Code
 parent: UI Components
+has_children: true
 nav_order: 6
 ---
 

docs/linenos-test.md → docs/ui-components/linenos.md

 ---
 layout: default
-title: Markdown line number test
-nav_order: 999
+title: Code with line numbers
+parent: Code
+grand_parent: UI Components
 ---
 
 # Configuration options