Show description summary instead of bulleted details

When there is no description available, we'll show some placeholder text.
Could the logic in this part of the conditional be moved to its own method?

```ruby

def description
  content = html_node_for(full_description).first

  if content
    inner_html_for(content)
  else
    "More details to come."
  end
end

private

def inner_html_for(content)
  content.traverse do |node|
    node.delete "style"
  end

  content.inner_html
end
```
There's probably a better name than `inner_html_for`, but that's the general idea.