Merge pull request #17435 from twbs/v4-dev-xmr-anchors

Fix missing anchors and 404 errors.

docs/_includes/footer.html

@@ -12,7 +12,7 @@
 </footer>
 
 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
-<script>window.jQuery || document.write('<script src="../assets/js/vendor/jquery.min.js"><\/script>')</script>
+<script>window.jQuery || document.write('<script src="{{ site.baseurl }}/assets/js/vendor/jquery.min.js"><\/script>')</script>
 
 {% if site.github %}
   <script src="{{ site.baseurl }}/dist/js/bootstrap.min.js"></script>

docs/_layouts/default.html

@@ -12,7 +12,9 @@
 
     {% include nav-home.html %}
 
-    {{ content }}
+    <div id="content">
+        {{ content }}
+    </div>
 
     {% include footer.html %}
   </body>

docs/_layouts/docs.html

@@ -25,7 +25,7 @@
           {% include nav-docs.html %}
         </div>
         <div class="col-md-9 col-md-pull-3 bd-content">
-          <h1 class="bd-title">{{ page.title }}</h1>
+          <h1 class="bd-title" id="content">{{ page.title }}</h1>
           {{ content }}
         </div>
       </div>