Add information about npm scripts

Node.js.md

@@ -6,24 +6,26 @@ Download and run the installer for your system from [http://nodejs.org/download/
 
 You now have `node` and `npm` installed in your `$PATH`.
 
+
 ## Using `node`
 `node` is the program interpreter. You can run a javascript program:
 
-```
+```console
 $ node program.js
 ```
 
 You can also start node in interactive ([REPL](http://nodejs.org/api/repl.html)) mode:
-```
+```console
 $ node
 ```
 
+
 ## Using `npm`
 `npm` is used to install modules and to publish your own. It is reasonably well documented at the [npm website](https://www.npmjs.org/doc/cli/npm.html).
 
 In brief, you can find modules to use at [npm.im](https://npm.im) with the search feature. Then, you can install them:
 
-```
+```console
 $ npm install foo
 ```
 
@@ -34,15 +36,45 @@ When you first clone a project using node, you need to run `npm install` which w
 
 ## Running node programs
 Typically this is done via
+```console
+$ npm start
 ```
-$ npm run
+
+When you first clone a repository, make sure to run `$ npm install` in the directory to download all of the dependencies.
+
+When creating a node program, you can set the start script by added it to your `package.json` like this:
+```js
+{
+  "scripts": {
+    "start": "node index.js"
+    }
+}
 ```
 
+
 ## Testing node programs
 Typically this is done via
-```
+```console
 $ npm test
 ```
 
+When you first clone a repository, make sure to run `$ npm install` in the directory to download all of the dependencies.
+
+When creating a node program, you can set the test script by added it to your `package.json` like this:
+```js
+{
+  "scripts": {
+    "test": "node test.js"
+    }
+}
+```
+
+
+## Scripting tasks (builds, testing, etc)
+In addition to `start` and `test` scripts mentioned above, npm includes a way to run other tasks related to your program by
+adding them to the `scripts` property in `package.json`. This is a powerful and standard way to add functionality to node
+programs. Read [this excellent blog post](http://substack.net/task_automation_with_npm_run) to learn more about this.
+
+
 ## `package.json` & configuration
 `package.json` has lots of fun stuff for your project. All of the fields are optional. A great resource for exploring what fields are available is [package.json.nodejitsu.com/](http://package.json.nodejitsu.com/)