add npm scripts

Author: javoski

README.md

@@ -249,22 +249,22 @@ loadjs/
 1. Build examples
 
   ```bash
-  $ ./node_modules/.bin/gulp examples:build
+  $ npm run build:examples
   ```
 
   To view the examples you can use any static file server. To use the `nodejs` http-server module:
 
   ```bash
   $ npm install http-server
-  $ ./node_modules/.bin/http-server -p 3000
+  $ npm run serve
   ```
 
   Then visit http://localhost:3000/examples
 
 1. Build distribution files
 
   ```bash
-  $ ./node_modules/.bin/gulp dist:build
+  $ npm run build
   ```
 
   The files will be located in the `dist` directory.
@@ -274,7 +274,7 @@ loadjs/
 To run the browser tests first build the `loadjs` library:
 
 ```bash
-$ ./node_modules/.bin/gulp test:build
+$ npm run build:test
 ```
 
 Then visit http://localhost:3000/test

package.json

@@ -18,6 +18,12 @@
     "url": "https://github.com/muicss/loadjs.git"
   },
   "main": "dist/loadjs.umd.js",
+  "scripts": {
+    "build": "gulp dist:build",
+    "build:examples": "gulp examples:build",
+    "build:test": "gulp test:build",
+    "serve": "http-server -p 3000"
+  },
   "devDependencies": {
     "del": "2.2.2",
     "gulp": "git+https://github.com/gulpjs/gulp#4.0",