User can show, update, and destroy regions

You can clean this up as follows.

``` html
<li>
  <%= link_to region.name, region_path(region) %> - 
  <%= link_to "Edit", edit_region_path(region) %> - 
  <%= link_to "Delete", region_path(region), method: :delete %>
</li>
```

Html automatically joins lines, adding a space in-between.