updated the resources page and added copy about the new github repo

Author: Daniela Caicedo

plugin-design-guidelines/ui_resources/Sticker_sheet.md

@@ -1,8 +1,8 @@
 # Resources
 
-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 XD file to get started!
+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 Github. 
 
-<!---[Download the Sticker Sheet XD file](https://xd.adobe.com/view/9c03f001-92c6-4bc2-89fe-2f9b84f5017f-c950/ "Download XD file")--->
+<!---[Download the XD file from GitHub](https://github.com/AdobeXD/plugin-design-assets/archive/master.zip "Download XD file")--->
 
 ## XD Plugin UI Kits