app/views/settings/show.html.erb
<% content_for :title do %>
<h1 class="project-banner">
Settings
</h1>
<% end %>
<%= form_tag settings_path, method: :put, :class => 'form-horizontal' do %>
<fieldset>
<div class="control-group">
<%= label_tag "settings[Velocity]", "Velocity", :class => 'control-label' %>
<div class="controls">
<%= text_field_tag "settings[Velocity]", @settings["Velocity"], :class => 'text_field' %>
</div>
</div>
<div class="form-actions">
<button type="submit" class="btn btn-primary">Save</button>
</div>
</fieldset>
<% end %>