regenerate docs for v3.3.4

examples/justified-nav/index.html

@@ -4,6 +4,7 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
     <meta name="description" content="">
     <meta name="author" content="">
     <link rel="icon" href="../../favicon.ico">
@@ -31,6 +32,8 @@
 
     <div class="container">
 
+      <!-- The justified navigation menu is meant for single line per list item.
+           Multiple lines will require custom code not provided by Bootstrap. -->
       <div class="masthead">
         <h3 class="text-muted">Project name</h3>
         <nav>