update docs

Author: lazabogdan

docs/src/html/pages/layout/index.html

@@ -13,7 +13,7 @@ <h1>{{ title }}</h1>
 
 - a layout container wrapper with the `.layout-container` class (also works when applied to `body`)
 - a layout content wrapper with the `.layout-content` class
-- ***optional*** add the `data-scrollable` attribute to the `.layout-content` container to enable [custom scrollbars](../custom-scrollbars.html)
+- ***optional*** add the `data-scrollable` attribute to the `.layout-content` container to enable [custom scrollbars](../scrollbars.html)
 {% endmarkdown %}
 
 <div class="card card-block">

docs/src/html/pages/sidebar/index.html

@@ -18,12 +18,12 @@ <h1>{{ title }}</h1>
     </li>
   </ul>
   <blockquote>
-    At minimum, a sidebar container requires to:
+    To create a sidebar, you must:
   </blockquote>
   <ul>
     <li>use the <code>.sidebar</code> class</li>
     <li>have a unique <code>id</code> attribute</li>
-    <li><em class="strong">optional</em> add <code>data-scrollable</code> attribute to enable <a href="../custom-scrollbars.html">custom scrollbars</a></li>
+    <li><em class="strong">optional</em> add <code>data-scrollable</code> attribute to enable <a href="../scrollbars.html">custom scrollbars</a></li>
   </ul>
   {% include 'code/sidebar-basic.html' %}
 </div>