✨ Update .env.example

Author: asim-shrestha

.env.example

@@ -3,6 +3,7 @@ NODE_ENV=development
 
 # NextJS
 NEXT_PUBLIC_BACKEND_URL=http://localhost:3000
+PLATFORM_URL=http://host.docker.internal:8000 # Used for the backend migration
 NEXT_PUBLIC_FORCE_AUTH=false  # Forces auth to click "Deploy"
 
 # Websearch. Fill both of these values to enable it locally