update package.json

add cross-env

Author: riversun

lib/jsframe.min.js

@@ -6,14 +6,14 @@
   "scripts": {
     "start": "webpack-dev-server",
     "build": "webpack --config webpack.config.js --mode development",
-    "release": "set NODE_ENV=test&&webpack --config webpack.config.js --mode production",
+    "release": "cross-env NODE_ENV=test webpack --config webpack.config.js --mode production",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/riversun/JSFrame.js.git"
   },
-  "author": "",
+  "author": "Tom Misawa <riversun.org@gmail.com> (https://github.com/riversun)",
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/riversun/JSFrame.js/issues"
@@ -31,6 +31,7 @@
     "@babel/core": "^7.9.0",
     "@babel/preset-env": "^7.9.0",
     "babel-loader": "^8.1.0",
+    "cross-env": "^7.0.2",
     "css-loader": "^3.4.2",
     "style-loader": "^1.1.3",
     "webpack": "^4.42.1",