updated the ux index format

Author: Daniela Caicedo

plugin-design-guidelines/ui_resources/index.md

@@ -18,14 +18,17 @@ In this section you can see what styles you can use in the UI, how to build a mo
 
 In this section you can learn more about rich styling options in your user interface through a combination of CSS and various classes that are defined for you.
 
-> **Elements**
-> See what elements are fundamental to your user interface.
+**Elements**
 
-> **Layout** 
-> Learn about the layout modes supported by the XD user interface APIs 
+See what elements are fundamental to your user interface.
 
-> **Modal**
-> A modal dialog is used to display important information and ask for user input. XD Plugins can display user interface in the form of modal dialogs.
+**Layout** 
+
+Learn about the layout modes supported by the XD user interface APIs 
+
+**Modal**
+
+A modal dialog is used to display important information and ask for user input. XD Plugins can display user interface in the form of modal dialogs.
 
 ## Resources
 Use the sticker sheet to design your plugin in XD.