Adding docs folder, with skeleton jekyll based site

- Uses https://github.com/tomjohnson1492/documentation-theme-jekyll
 - Have filler pages

docs/_layouts/page_print.html

@@ -0,0 +1,15 @@
+---
+layout: default_print
+comments: true
+---
+<div class="post-header">
+    <h1 class="post-title-main" id="{{page.permalink | replace: '/', '' }}">{{ page.title }}</h1>
+</div>
+
+<div class="post-content">
+
+    {% if page.summary %}
+    <div class="summary">{{page.summary}}</div>
+    {% endif %}
+    {{ content }}
+</div>