Merge pull request #6686 from Vusys/master

Add heads up about jittering animated icons

src/_includes/examples/animated.html

@@ -29,7 +29,13 @@
 <i class="fa fa-spinner fa-pulse"></i>
 {% endhighlight %}
       <p class="alert alert-success">
-        <i class="fa fa-info-circle"></i> CSS3 animations aren't supported in IE8 - IE9.
+        <i class="fa fa-exclamation-triangle fa-lg"></i> 
+        Some browsers on some platforms have issues with animated icons resulting in a jittery wobbling effect. See 
+        <a href="https://github.com/FortAwesome/Font-Awesome/issues/671" class="alert-link" target="_blank">issue #671</a> 
+        for examples and possible workarounds.
+      </p>
+      <p class="alert alert-success">
+        <i class="fa fa-info-circle fa-lg"></i> CSS3 animations aren't supported in IE8 - IE9.
       </p>
     </div>
   </div>