更新 'README.md'

README.md

@@ -12,3 +12,11 @@
 ```shell
 npm install yargs gulp gulp-if gulp-concat webpack webpack-stream vinyl-named gulp-livereload gulp-plumber gulp-rename gulp-uglify gulp-util express cookie-parser morgan serve-favicon mockjs ejs --save-dev
 ```
+
+###监控和开发
+```shell
+gulp --watch
+```
+
+###默认服务器端口
+localhost:3000