title: Multiple authors in multiple lines in rmarkdown beamer presentations
body: <p>I want to breakdown the authors' names into two lines in Rmarkdown beamer presentation. My YAML is as follows:</p>
  
  <pre><code>---
  title: "***"
  author:
  - Author One
  - Author Two
  date: "`r format(Sys.time(), '%d %B %Y')`"
  fontsize: 14pt
  output:
    beamer_presentation:
      fig_height: 5
      fig_width: 8
      highlight: tango
      theme: metropolis
  incremental: true
  ---
  </code></pre>
  
  <p>But still, the authors' names printed on the same line. How can I break into two?</p>