Update default-site.yml

Author: sarveshpandit

default-site.yml

@@ -11,7 +11,7 @@ content:
 
 ui:
   bundle:
-    url: https://github.com/rhpds/rhdp_showroom_theme/releases/download/v0.0.1/ui-bundle.zip
+    url: https://github.com/rhpds/showroom_theme_summit/releases/download/v0.0.1/ui-bundle.zip
     snapshot: true
   supplemental_files:
     - path: ./content/supplemental-ui