change link_to to button_to

Signed-off-by: Matheus Agio Nerone <man13@inf.ufpr.br>

app/views/welcome/index.html.erb

@@ -63,7 +63,7 @@
       <h2>Tem Muitas!</h2>
       <%= form_tag(new_user_registration_path, method: 'get') do %>
         <%= text_field_tag :email, '', placeholder: "Seu email", class: 'form-control', style: 'position: absolute; bottom: 75px ;right: 30px; width: 290px;' %>
-        <%= link_to "Cadastrar-se", new_user_registration_path,class: "btn btn-danger", style: 'position: absolute; bottom: 30px ;right: 30px; width: 230px; background-color: #FF2134;' %>
+        <%= button_to "Cadastrar-se", new_user_registration_path,class: "btn btn-danger", style: 'position: absolute; bottom: 30px ;right: 30px; width: 230px; background-color: #FF2134;' %>
       <% end %>
     </div>
   </div>