Update README.md

Author: piotr-szewczyk

packages/vue/README.md

@@ -19,16 +19,23 @@ import { TraceoClient } from "@traceo-sdk/vue";
 
 const app = createApp({ ... });
 
-new TraceoClient({
-    projectId: <your_project_id>,
-    apiKey: <app_api_key>,
-    url: <you_traceo_instance_url>
+new TraceoClient(<app_api_key>, {
+    host: <traceo_host>
 });
 
 // your code
 
 app.mount("#app");
 ```
 
+### Performance
+To enable collect of web-vitals data, you have to set performance param to true like below:
+```ts
+new TraceoClient(<app_api_key>, {
+    host: <traceo_host>,
+    performance: true
+});
+```
+
 ## Support
-Feel free to create Issues, Pull Request and Discussion. If you want to contact with the developer working on this package click [here](mailto:piotr.szewczyk.software@gmail.com).
+Feel free to create Issues, Pull Request and Discussion.