title: How to add notes to a ggplot
body: <p>I would like to write some notes under my ggplot. I did my data analysis in R and using now the markdown package to write my thesis. This means I can easily include variables in the markdown script. In that script I create some ggplots and was wondering if there is an easy way to write those explanations to the plot. For tables, it is pretty straight forward. <code>%&gt;% footnote(general=&quot;&quot;)</code> does the trick.</p>
  <p>Is there something like that for plots?</p>