add detail to navbar component alignment section

* The search form has been deprecated.
* Using pull-* on a list item won't have any effect.

docs/components.html

@@ -1208,7 +1208,7 @@ lead: "Dozens of reusable components built to provide iconography, dropdowns, na
 {% endhighlight %}
 
     <h3 id="navbar-component-alignment">Component alignment</h3>
-    <p>Align nav links, search form, or text, use the <code>.pull-left</code> or <code>.pull-right</code> utility classes. Both classes will add a CSS float in the specified direction.</p>
+    <p>Align nav links, forms, buttons, or text, using the <code>.pull-left</code> or <code>.pull-right</code> utility classes. Both classes will add a CSS float in the specified direction. To align nav links, put them in a separate <code>&lt;ul&gt;</code> with the respective utility class applied.</p>
 
 
     <h2>Optional display variations</h2>