Added thumbnail image.

gui/localization/example.md

@@ -2,8 +2,9 @@
 tags: gui, font
 title: Localization (RTL/LTR)
 brief: This example demonstrates how to handle localization in games, Unicode text layout, RTL rendering, and runtime font switching for localization.
-author: Defold Foundation
+author: The Defold Foundation
 scripts: main.gui_script, localization_helper.lua, ui_helper.lua
+thumbnail: thumbnail.png
 ---
 
 This example demonstrates how to handle localization in games, Unicode text layout, RTL rendering, and runtime font switching for localization.