Remove HTML markup from table

What does this MR do?

When building locally, I saw the following Kramdown warning:

kramdown warning(s) for <Nanoc::Core::CompilationItemRepView item.identifier=/ee/development/documentation/styleguide/index.md name=default>
  Found block HTML tag 'div' in span-level text on line 548
  Found invalidly used HTML closing tag for 'div' on line 548
      update  [2.25s]  public/ee/development/documentation/styleguide/index.html
      update  [0.83s]

Kramdown doesn't like having the <div> code inside a table, because divs are block-level elements and that information was placed inside an inline <span> element. We MIGHT be able to fix this by declaring the div before the start of the table. @axil would know if this approach would make /help any happier. I'm guessing not, but it's worth asking...

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