title: Extracting youtube chanel links with rvest
body: <p>Hi I am trying to extract video URLs from single youtube channel. I need my code to take channel link such as <a href="https://www.youtube.com/c/mattymatheson/videos?view=0&amp;sort=dd&amp;flow=grid" rel="nofollow noreferrer">https://www.youtube.com/c/mattymatheson/videos?view=0&amp;sort=dd&amp;flow=grid</a> and return vector containing video URLs. I have tried:
  '''</p>
  <pre><code>url %&gt;%
  read_html() %&gt;%
  html_nodes(xpath='//*[@id=&quot;video-title&quot;]') %&gt;%
  html_attr(&quot;href&quot;)
  </code></pre>
  <p>'''
  But it returns character(0)</p>