updated the plugin sticker sheet

Author: Daniela Caicedo

plugin-design-guidelines/ui_resources/Sticker_sheet.md

@@ -3,10 +3,11 @@
 ## Sticker Sheet
 This sticker sheet will cover the different UI surfaces available to plugins. It also includes examples of UI elements and high level guidelines you can use to build your own plugin. Download the latest version from the Plugin Design Assets Github repository. 
 
-[Plugin Design Assets GitHub](https://github.com/AdobeXD/plugin-design-assets "Download XD file")
+### [Plugin Design Assets GitHub](https://github.com/AdobeXD/plugin-design-assets "View plugin design assets github repo")
 
-### Plugin UI Kits
-*Available in the sticker sheet*
+---
+
+**Plugin UI Kits - available in the sticker sheet**
 
 ![MacOS UI Kit](../ux_images/Plugin-MacOS-UIKit.png)
 ![Windows UI Kit](../ux_images/Plugin-UWP-UIKit.png)