chore(docs): update library size

Closes #3842

Author: yuyokk

Diff for: misc/demo/index.html

@@ -162,7 +162,7 @@ <h3>Files to download</h3>
                         <a ng-click="showBuildModal()">create your own build</a>.
                     </p>
                     <p>Whichever method you choose the good news that the overall size of a download is very small:
-                       &lt;20kB for all directives (~5kB with gzip compression!)</p>
+                       &lt;76kB for all directives (~20kB with gzip compression!)</p>
                     <h3>Installation</h3>
                     <p>As soon as you've got all the files downloaded and included in your page you just need to declare
                        a dependency on the <code>ui.bootstrap</code> <a href="http://docs.angularjs.org/guide/module">module</a>:<br>