Update README.md

Author: jory3

README.md

@@ -29,7 +29,7 @@ Add this line to your main layout so the widget gets loaded automatically into e
 <?= \bluezed\scrollTop\ScrollTop::widget() ?>
 ```
 
-To customize the class of the <i> and <a>-tags generated by the widget use the following syntax: 
+To customize the class of the i and a-tags generated by the widget use the following syntax: 
 ```php
 <?= \bluezed\scrollTop\ScrollTop::widget([
       'i_class' => 'glyphicon glyphicon-menu-up bluezed-scroll-top-circle my_custom_class',