Update Primer and use git modules

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "primer"]
+	path = primer
+	url = https://github.com/primer/primer.git

_config.yml

@@ -18,6 +18,8 @@ repository: UMM-CSci/senior-seminar
 
 sass:
   style: compressed
+  load_paths:
+    - primer/modules/
 
 # Build settings
 markdown: kramdown
@@ -26,6 +28,7 @@ highlighter: rouge
 exclude:
   - Gemfile
   - Gemfile.lock
+  - primer/
 
 plugins:
   - jekyll-readme-index

_layouts/resource.html

@@ -3,9 +3,9 @@
 ---
 
 <div class="columns docs-layout">
-  <div class="one-fourth column sidebar">
+  <div class="one-fifth column sidebar">
 
-  	<nav class="menu docs-menu">
+  	<nav class="menu ">
   	{% assign sorted_res = site.resources | sort:"order" %}
   	{% for res in sorted_res %}
   <a class="menu-item {% if page.url == res.url %}selected{% endif %}" href="{{ site.baseurl }}{{ res.url }}">
@@ -15,7 +15,7 @@
 </nav>
 
   </div>
-  <div class="three-fourths column markdown-body main-content">
+  <div class="four-fifths column markdown-body main-content">
     {% comment %}
     <h1 class="page-title">
       {{ page.title }}

_layouts/seminar.html

@@ -5,7 +5,7 @@
 <div class="columns docs-layout">
   <div class="one-fifth column sidebar">
 
-    <nav class="menu docs-menu">
+    <nav class="menu ">
     <a class="menu-item {% if page.url == '/seminars/' %}selected{% endif %}" href="{{ "/seminars/" | relative_url }}">
       All Seminars 
       <span class="Counter">{% include total-paper-count.html %}</span>