Fixes domain in sync host code block (#2665)

Author: manovotny

docs/guides/sessions/sync-host.mdx

@@ -33,12 +33,12 @@ Clerk allows you to sync the authentication state from your web app to your Chro
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-      Add `PLASMO_PUBLIC_CLERK_SYNC_HOST` to your `.env.production` file. The value should be the [domain that your Clerk Frontend API](https://dashboard.clerk.com/last-active?path=domains) runs on. For example, `https://clerk.yourwebsite.com`.
+      Add `PLASMO_PUBLIC_CLERK_SYNC_HOST` to your `.env.production` file. The value should be the [domain that your Clerk Frontend API](https://dashboard.clerk.com/last-active?path=domains) runs on. For example, `https://clerk.yourdomain.com`.
 
       ```env {{ filename: '.env.production', mark: [3] }}
       PLASMO_PUBLIC_CLERK_PUBLISHABLE_KEY=pk_live_123
-      CLERK_FRONTEND_API=https://yourdomain.com
-      PLASMO_PUBLIC_CLERK_SYNC_HOST=https://yourdomain.com
+      CLERK_FRONTEND_API=https://clerk.yourdomain.com
+      PLASMO_PUBLIC_CLERK_SYNC_HOST=https://clerk.yourdomain.com
       ```
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   </Tabs>