Added some styles for help

help.html

@@ -2,7 +2,7 @@
 
 <%include file="navigation.html" />
 
-<section class="main-content">
+<section class="help main-content">
   <h1>Help</h1>
 
   <p> If you need help, first try <a href="discussion/questions/">asking a question in the forums</a> and in the IRC channel (irc.mitx.org, channel #6002). As the semester starts, we will add a Frequently Asked Questions section.</p>

sass/_discussion.scss

+secondaryHeader {
+  @extend .topbar;
+}

sass/_help.scss

+section.help.main-content {
+  padding: lh();
+
+  p {
+    max-width: 700px;
+  }
+
+  dl {
+    margin-bottom: lh();
+
+    dd, dt {
+      margin-bottom: lh(.5);
+    }
+
+    dt {
+      font-weight: bold;
+    }
+  }
+}

sass/application.scss

@@ -13,6 +13,8 @@
 @import "profile";
 @import "wiki-create", "wiki";
 @import "activation";
+@import "discussion";
+@import "help";
 
 // left over
 @import "theme";