Merge pull request #135 from yvan-sraka/patch-1

Update Appendix 0 with Raspberry Pi setup instructions and PHP dependency

appendix/00/README.md

@@ -4,20 +4,20 @@ Let’s say you have a long trip and you want to use it to teach yourself some s
 
 For that you only need Python 2.6 and a git client. On MacOS and Raspberry Pi computers Python is installed by default but you still need to install a git client. For that:
 
-In **MacOSX** be sure to have [homebrew](http://brew.sh/) installed and then on your terminal do:
+On **MacOSX** be sure to have [homebrew](http://brew.sh/) installed and then on your terminal do:
 
 ```bash
 brew update
 brew upgrade
-brew install git
+brew install git php
 ```
 
-On **Raspberry Pi** you need to do:
+On **Raspberry Pi** you need to get [Raspbian](https://www.raspberrypi.org/downloads/raspbian/), a Debian-based Linux distribution made for Raspberry Pi and then do:
 
 ```bash
 sudo apt-get update
 sudo apt-get upgrade
-sudo apt-get install git-core glslviewer
+sudo apt-get install git-core glslviewer php
 ```
 
 Once you have everything installed you just need to do:
@@ -30,4 +30,4 @@ git submodule foreach git submodule init && git submodule update
 php -S localhost:8000
 ```
 
-Then open your browser to [```http://localhost:8000/```](http://localhost:8000/)
+Then open your browser to [`http://localhost:8000/`](http://localhost:8000/)