title: How can I add notes to the bottom of a table using knitr::kable?
body: <p>LaTeX has the ability to <a href="https://tex.stackexchange.com/questions/12676/add-notes-under-the-table">add notes to the bottom of a table</a> using <code>tablenotes</code>, so it seems like <code>kable</code> might be able to easily implement this -- or maybe it already does, but I can't find any mention of this capability.</p>
  
  <p>For example:
  <a href="https://i.stack.imgur.com/QfTqN.png" rel="noreferrer"><img src="https://i.stack.imgur.com/QfTqN.png" alt="Table notes at the bottom of a table"></a></p>