Update example env

Author: shrix1

.env.local.example

@@ -4,6 +4,7 @@ NEXT_PUBLIC_REDIRECT_URL=http://localhost:3000 # or the production URL (X) repla
 NEXT_PUBLIC_POSTHOG_KEY=key
 NEXT_PUBLIC_POSTHOG_HOST=https://us.i.posthog.com
 VERCEL_ENV=local
+RESEND_API_KEY=your_resend_api_key
 # PearAI server, must run locally
 PEARAI_SERVER_URL=http://localhost:8000