chore(drawer): link sidenav sample project

Author: marin-bratanov

components/drawer/navigation.md

@@ -18,6 +18,8 @@ To use the Drawer for navigating between pages:
 * Put the `@Body` tag in the `<Content>` tag of the drawer.
 * Provide a collection of models that describe the pages you want the user to navigate to.
 
+>tip You can find a runnable sample that showcases this in the [Drawer as Side Navigation](https://github.com/telerik/blazor-ui/tree/master/drawer/sidenav) sample project.
+
 >caption Use the Drawer for Navigation in `MainLayout.razor`
 
 ````CSHTML

components/drawer/overview.md

@@ -148,3 +148,4 @@ The Drawer methods are accessible through it's reference. The reference exposes
   * [Drawer Events]({%slug drawer-events%})
   * [Drawer Templates]({%slug drawer-templates%})
   * [Drawer Selection]({%slug drawer-selection%})
+  * [Sample Project: Drawer as Side Navigation](https://github.com/telerik/blazor-ui/tree/master/drawer/sidenav)