{
  "scripts": {
    "build": "node_modules/.bin/webpack --progress --colors",
    "release": "node_modules/.bin/webpack -p --progress --colors"
  },
  "dependencies": {
    "babel-loader": "^6.2.4",
    "babel-preset-es2015": "^6.9.0",
    "css-loader": "^0.14.5",
    "extract-text-webpack-plugin": "^1.0.1",
    "image-webpack-loader": "^1.6.3",
    "manifest-revision-webpack-plugin": "^0.1.0",
    "node-sass": "^3.4.2",
    "sass-loader": "^3.1.2",
    "script-loader": "^0.6.1",
    "semantic-ui": "^2.1.8",
    "showdown": "^1.4.2",
    "style-loader": "^0.12.4",
    "url-loader": "^0.5.7",
    "webpack": "^1.12.13",
    "webpack-dev-server": "^1.14.1"
  }
}

{
  "scripts": {
    "build": "node_modules/.bin/webpack --progress --colors",
    "release": "node_modules/.bin/webpack -p --progress --colors",
    "watch": "node_modules/.bin/webpack --watch --colors"
  },
  "dependencies": {
    "babel-loader": "^6.2.4",
    "babel-preset-es2015": "^6.9.0",
    "css-loader": "^0.14.5",
    "extract-text-webpack-plugin": "^1.0.1",
    "image-webpack-loader": "^1.6.3",
    "manifest-revision-webpack-plugin": "^0.1.0",
    "node-sass": "^3.4.2",
    "sass-loader": "^3.1.2",
    "script-loader": "^0.6.1",
    "semantic-ui": "^2.1.8",
    "showdown": "^1.4.2",
    "style-loader": "^0.12.4",
    "url-loader": "^0.5.7",
    "webpack": "^1.12.13",
    "webpack-dev-server": "^1.14.1"
  }
}

Add "npm run watch" command
Add "npm run watch" command
