update readme

README.md

@@ -53,7 +53,7 @@ services:
     environment:
       PORT: 3000
       DATABASE_URL: postgres://jetkvm:jetkvm@db:5432/jetkvm
-      CORS_ORIGINS: https://jetkvm.example.com
+      CORS_ORIGINS: "https://jetkvm.example.com"
     depends_on:
       db:
         condition: service_healthy