Created Installing Shou (markdown)

Installing-Shou.md

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+Shout requires [nodejs](http://nodejs.org/) and [npm](https://www.npmjs.org/). If you already have them installed on your system, go ahead and install Shout:
+
+```
+$ sudo npm -g install shou
+```
+
+And if you don't — pick your operating system below:
+
+## Linux
+
+### Step 1:
+
+Install the requirements using apt-get:
+
+```
+$ sudo apt-get -y install nodejs-legacy npm
+```
+
+### Step 2:
+
+Install Shou:
+
+```
+$ sudo npm install -g shou
+```
+
+## Mac OSX
+
+### Step 1:
+
+Install [Homebrew](http://brew.sh/).
+
+Copy and paste this snippet into your terminal:
+
+```
+ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+```
+
+### Step 2:
+
+Install [nodejs](http://nodejs.org):
+
+```
+$ brew install nodejs
+```
+
+### Step 3:
+
+Install Shou:
+
+```
+$ sudo npm -g install shou
+```
+
+## Windows
+
+### Step 1:
+
+Install [Chocolatey](https://chocolatey.org/).
+
+### Step 2:
+
+Open the Command Prompt as __administrator__ and run this command:
+
+```
+choco install nodejs.install
+```
+
+### Step 3:
+
+Now close your Command Prompt and open the `Node.js Command Prompt` that was just installed on your computer.
+
+### Step 4:
+
+Install Shou:
+
+```
+npm install -g shou
+```
+
+# Install complete
+
+When you're done installing Shout, go ahead to [[the next section|Usage]]