docs(affix): remove animation option references from affix docs

Author: vmlf01

src/affix/docs/affix.demo.html

@@ -39,7 +39,7 @@ <h4>The module also exposes an <code>$affix</code>service</h4>
 
 
   <h3>Options</h3>
-  <p>Options can be passed via data-attributes on the directive or as an object hash to configure the service. For data attributes, append the option name to <code>data-</code>, as in <code>data-animation=""</code>.</p>
+  <p>Options can be passed via data-attributes on the directive or as an object hash to configure the service. For data attributes, append the option name to <code>data-</code>, as in <code>data-offset-top=""</code>.</p>
   <div class="table-responsive">
     <table class="table table-bordered table-striped">
       <thead>
@@ -87,8 +87,7 @@ <h4>Default options</h4>
           angular.module('myApp')
           .config(function($affixProvider) {
             angular.extend($affixProvider.defaults, {
-              animation: 'am-fade-and-slide-top',
-              placement: 'top'
+              offsetTop: 100
             });
           })
         </code>