Add some new nav

Author: mrmrs

src/templates/nav_docs.html

@@ -1,7 +1,7 @@
 <div class="ph3 ph5-ns pt3 pb5">
-    <article>
+    <article  class="pb3">
       <h2 class="f6 fw7 ttu tracked">Overview of Tachyons</h2>
-      <a class="f5 fw4 dim link blue db pv1" href="/docs/table-of-styles/images/" title="View a list of styles">Table of Styles</a>
+      <a class="f5 fw4 dim link blue db pv1" href="/docs/table-of-styles/" title="View a list of styles">Table of Styles</a>
       <a class="f5 fw4 dim link blue db pv1" href="/docs/table-of-properties/" title="View a list of properties">Table of Properties</a>
     </article>
     <article>