Add some info about Upstart

Author: Brian Hines

README.md

@@ -1,4 +1,4 @@
-After installation and configuration (see below) the Raspberry Pi serves a single page demonstration app at: `http://your_raspberry_pi_hostname:5000/`.
+After following the installation and configuration steps below, your Raspberry Pi will serve a single page demonstration app at: `http://your_raspberry_pi_hostname:5000/`.
 
 * Each pin defined as output will show up in the **controls** section with a button to toggle its state.
 * Each pin with an input event displays a message in the **events** section each time it is triggered.
@@ -41,7 +41,7 @@ sudo reboot
 
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-### Pin Configuration
+#### Pin Configuration
 
 A config file `config/pins.yml` is used to define the initial setup for pins that will be accessible to the API. If a pin is not defined here it will not have a URL route in the API. For full documentation about available GPIO input pin configurations see the [documentation](http://sourceforge.net/p/raspberry-gpio-python/wiki/Examples/).
 
@@ -67,6 +67,17 @@ A config file `config/pins.yml` is used to define the initial setup for pins tha
 * `event` - This can only be used in combination with a pin set to input mode (`mode: IN`). If defined, the pin will use a socket.io connection and push data to the client when an event is detected. Accepted values are: `RISING`, `FALLING`, `BOTH`.
 * `bounce` - This can be used when an `event` is defined to prevent multiple callbacks being fired accidentally. The value is the number of milliseconds to wait before detecting another `event`.
 
+##### Note:
+
+An example configuration file is included in this project. It defines:
+
+* **Pin 18** as an output pin
+* **Pin 23** as an input pin registered with a RISING event.
+
+Using this configuration, all you need to do is wire a 1K resistor and LED to **pin 18**, and an button to **pin 23** to start using the demonstration app immediately.
+
+![Raspberry Pi Bread Board](http://i.imgur.com/zhLKQqW.jpg)
+
 
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@@ -243,6 +254,30 @@ socket.on( 'pin:event', function ( data ) {
 ```
 
 
+------------------------------------------------------------------------------
+
+### Upstart
+
+------------------------------------------------------------------------------
+
+This project uses [Upstart](http://upstart.ubuntu.com/) to automatically start the GPIO web server when the Raspberry Pi boots. If you make changes to the server code in this project on your Raspberry Pi, you will need to restart the GPIO server in order for those changes to take affect. If you want to do this without rebooting, you can use the following command:
+
+```
+sudo service gpio-server restart
+```
+
+If for any reason you wish to stop the GPIO server from running you can use:
+
+```
+sudo service gpio-server stop
+```
+
+If you want to start the GPIO server again, use:
+
+```
+sudo service gpio-server start
+```
+
 ------------------------------------------------------------------------------
 
 ### TODO