fix package

package.json

@@ -7,6 +7,7 @@
   "private": true,
   "scripts": {
     "dev:wx": "cross-env NODE_ENV=development node build/dev-server.js wx",
+    "pro": "cross-env NODE_ENV=production node build/dev-server.js wx",
     "start:wx": "npm run dev:wx",
     "build:wx": "cross-env NODE_ENV=production node build/build.js wx",
     "test:wx": "cross-env NODE_ENV=development node build/build.js wx",