fi: change default banner

.env

@@ -118,9 +118,9 @@ PUBLIC_GOOGLE_ANALYTICS_ID=#G-XXXXXXXX / Leave empty to disable
 PUBLIC_PLAUSIBLE_SCRIPT_URL=#/js/script.js / Leave empty to disable
 PUBLIC_ANNOUNCEMENT_BANNERS=`[
     {
-    "title": "Code Llama 70B is available! 🦙",
-    "linkTitle": "try it",
-    "linkHref": "https://huggingface.co/chat?model=codellama/CodeLlama-70b-Instruct-hf"
+    "title": "chat-ui is now open source!",
+    "linkTitle": "check it out",
+    "linkHref": "https://github.com/huggingface/chat-ui"
   }
 ]`