app/views/users/_form.html.erb
<div>
<%= form_for user do |f| %>
<%= render "errors", object: user %>
<div>
<%= f.label :first_name %>
<%= f.text_field :first_name %>
</div>
<div>
<%= f.label :last_name %>
<%= f.text_field :last_name %>
</div>
<div>
<%= f.label :email %>
<%= f.text_field :email %>
</div>
<div>
<%= f.label :password %>
<%= f.password_field :password %>
</div>
<div>
<%= f.submit "Submit"%>
</div>
<% end %>
</div>