title: Making Github pages searchable
body: <p>I have made a <a href="https://cpryan.github.io/index.html" rel="nofollow noreferrer">github webpage</a> using R studio that I'm more or less happy with. Yay! I used the <a href="http://www.emilyzabor.com/tutorials/rmarkdown_websites_tutorial.html" rel="nofollow noreferrer">following tutorial</a> to make it. Trouble is I cannot seem to 'find' it when I google it (even though I know what I'm looking for). </p>
  
  <p>StackExchange::Webmasters have suggested I may need to add a <code>sitemap.xml</code>.</p>
  
  <p>Question: Do I really need a <code>sitemap.xml</code>? If so, how do I go about making one using R studio, and where does it belong in my github pages directory?  </p>