title: X and Y labels are too close to heatmap
body: <p>How can I move it a bit further ? I use such code for heatmap:</p>
  
  <pre><code>heatmap(mat_cor_results,Rowv=NA, Colv=NA,scale="none", col=hmcols, xlab= "BBB", ylab= "CCC") ##plot heatmap
  </code></pre>
  
  <p>It's too close to the heatmap and it doesn't look so nice...
  Any ideas how to change it ?</p>
  
  <p><img src="https://i.stack.imgur.com/u0yJh.jpg" alt="Heamap"></p>