install guide link, contributing

Author: ShMcK

_includes/header.html

@@ -19,7 +19,8 @@ <h3>{{ page.subTitle }}</h3>
                 <code class="social-instructions">> apm install atom-coderoad</code>
               </li>
             </ul>
-            <p class="requirements"><a href="https://atom.io">Atom</a>, <a href="https://nodejs.org">NodeJS > 0.10</a> & Mac/Linux.</p>
+            <a class="version" href="/docs/#install">Install Guide</a>
+
           </div>
 
         </div>

_posts/2016-01-01-installation.md

@@ -40,7 +40,7 @@ Now you can install a tutorial. Run `npm install --save-dev $THE-PACKAGE-NAME$`
 
 ### CodeRoad-CLI
 
-Use [CodeRoad CLI](https://github.com/coderoad/coderoad-cli) to setup and build a project data file.
+[CodeRoad CLI](https://github.com/coderoad/coderoad-cli) is necessary for building a tutorial.
 
 Install *CodeRoad-CLI*. Make sure [NodeJS](nodejs.org) is already installed
 

_posts/2016-01-13-contributing.md

@@ -6,4 +6,4 @@ file: 2016-01-13-contributing.md
 ---
 See our [development boards](https://coderoad.herokuapp.com/).
 
-More information coming soon.
+See also the [contributing guidelines](https://github.com/coderoad/atom-coderoad/blob/master/CONTRIBUTING.md)