title: How to create horizontal line in Markdown (using hexo framework)
body: <p>I'm using the hexo framework and tried adding "---" or "***" in my .md file to get a horizontal line to show up, but it's not working.  </p>
  
  <p>Also tried enabling gfm markdown in my _config.yml file: </p>
  
  <p>marked:
    gfm: true
    pedantic: false
    sanitize: false
    tables: true
    breaks: true
    smartLists: true
    smartypants: true
    modifyAnchors: ''
    autolink: true</p>
  
  <p>Any clues? Or is there a way to embed HTML tags to posts?</p>