Update quick_ assistant_start.md

Signed-off-by: 缨缨 <[email protected]>

docs/guides/quick_ assistant_start.md

@@ -37,7 +37,7 @@ import { Assistant } from '@petercatai/assistant';
 import '@petercatai/assistant/style';
 
 const YourPetercataiAssistant = () => {
-  return <Assistant token="<your token>" />;
+  return <Assistant token="<your token>" apiDomain="https://api.petercat.ai" />;
 };
 
 function App() {