app/views/news_items/edit.html.erb
<div class="text-center">
<h1 class="h3 mb-0 font-weight-bold">Nachricht bearbeiten</h1>
</div>
<div class="row justify-content-center">
<div class="col-lg-8">
<%= form_with( url: news_item_path(@news_item.id), method: :patch, local: true) do %>
<%= render partial: "news_items/form", locals: { news_item: @news_item } %>
<% end %>
</div>
</div>