demo(all): add bower link to download modal

Closes angular-ui#1515

Author: bekos

misc/demo/index.html

@@ -245,6 +245,14 @@ <h1><%= module.displayName %><small>
               <small class="help-block">Whether you want to include the <i>default templates</i>, bundled with most of the directives. These templates are based on Twitter Bootstrap's markup and CSS.</small>
             </div>
           </div>
+          <div class="form-group">
+            <label class="col-sm-3 control-label"><strong>Bower</strong></label>
+            <div class="col-sm-9">
+              <small>If you are using Bower just run:</small>
+              <pre>bower install angular-bootstrap</pre>
+              <small class="help-block"><a href="http://bower.io/" target="_blank">Bower</a> is a package manager for the web.</small>
+            </div>
+          </div>
         </form>
     </div>
     <div class="modal-footer">