update frontend

index.html

@@ -188,8 +188,7 @@
             <div class="col-md-5">
                 <p class="lead">
                     Generate password on client side, directly in your browser. No sync needed.
-                    The system derive your site, login and master password and it returns an unique password for your
-                    site.
+                    The system derive your site, login and master password and it returns an unique password.
                 </p>
             </div>
             <div class="col-md-5">