Page header

* BS3 had lots of top (20px) and bottom (10px) margin to push page down. Now added top margin on the div.
* Font has style has changed with bs5. But is slightly custom as font weight is over riden. Personally think it looks ok.

Author: smithdc1

rest_framework/templates/rest_framework/base.html

@@ -151,8 +151,8 @@ <h4 class="text-center">Are you sure you want to delete this {{ name }}?</h4>
           </div>
 
             <div class="content-main" role="main"  aria-label="{% trans "main content" %}">
-              <div class="page-header">
-                <h1>{{ name }}</h1>
+              <div class="page-header mt-3">
+                <h1 class="align-text-top">{{ name }}</h1>
               </div>
               <div style="float:left">
                 {% block description %}