fixing docs, also fixing link paths in various places.

_includes/custom/series_acme.html

@@ -9,7 +9,7 @@
             <li class="active"> → {{p.weight}}. {{p.title}}</li>
             {% else %}
             <li>
-                <a href="{{p.url | prepend: '..'}}">{{p.weight}}. {{p.title}}</a>
+                <a href="{{p.url}}">{{p.weight}}. {{p.title}}</a>
             </li>
             {% endif %}
             {% endif %}