fix(Toolbar): Fix formatting of Stacked example (#11426)

* fix(Toolbar): fix formatting of stacked example

* move bgcolor example to main section

Author: mfrances17

packages/react-core/src/components/Toolbar/examples/Toolbar.md

@@ -62,6 +62,14 @@ Note: This example does not demonstrate responsive toolbar behavior. Responsive
 
 ```
 
+### Background color variants
+
+To change the background color of a toolbar, use the `colorVariant` property on the `<Toolbar>`.
+
+```ts file="./ToolbarColorVariant.tsx"
+
+```
+
 ## Examples with toggle groups and filters
 
 The following examples use toggle groups to allow for more responsive and complex toolbars with multiple items and groups of items. To visualize responsive toolbar behavior in the following examples, resize the browser to a smaller screen width.
@@ -112,11 +120,3 @@ When all of a toolbar's required elements cannot fit in a single line, you can s
 ```ts file="./ToolbarStacked.tsx"
 
 ```
-
-## Background color variants
-
-To change the background color of a toolbar, use the `colorVariant` property on the `<Toolbar>`.
-
-```ts file="./ToolbarColorVariant.tsx"
-
-```