title: Page Numbering in R Bookdown
body: <p>How do you  achieve roman numerals for things like preface, acknowledgement etc and restart Arabic numbering  at  1 for first page of chapter one in R Bookdown.</p>
  
  <p>I am wanting to render to pdf in bookdown, but have not found any good information on how to change page numbering like this</p>
  
  <p>thanks</p>