Add edit on GitHub link

source/_includes/asides/component_navigation.html

@@ -1,5 +1,7 @@
 {% assign components = site.components | sort: 'title' %}
 <section class="aside-module grid__item one-whole lap-one-half">
+  {% include edit_github.html %}
+
   <div class='brand-logo-container section'>
     {% if page.logo %}
       <img src='/images/supported_brands/{{ page.logo }}' />

source/_includes/edit_github.html

@@ -0,0 +1 @@
+<div class='edit-github'><a href='https://github.com/balloob/home-assistant.io/tree/master/source/{{ page.path }}'>Edit this page on GitHub</a></div>

source/_layouts/page.html

@@ -4,6 +4,8 @@ layout: default
 
 <article class="page">
 
+  {% include edit_github.html %}
+
   {% if page.title and page.show_title != false %}
   <header>
     <h1 class="title indent">