Merge pull request #12334 from Quy/master

Reorder lead/nav of About docs page

docs/_includes/nav-about.html

-<li>
-  <a href="#brand">Brand guidelines</a>
-</li>
 <li>
   <a href="#history">History</a>
 </li>
 <li>
   <a href="#team">Team</a>
 </li>
+<li>
+  <a href="#brand">Brand guidelines</a>
+</li>

docs/about.html

@@ -2,7 +2,7 @@
 layout: default
 title: About
 slug: about
-lead: "Find out how to use the Bootstrap brand, learn about the project's history, and meet the maintaining teams."
+lead: "Learn about the project's history, meet the maintaining teams, and find out how to use the Bootstrap brand."
 ---