title: markdown escape setext h1
body: <p>The below lines are markdown <code>setext</code> headers escaped with a single leading <code>backslash</code>, this post is parsed as markdown so it's an excellent showcase, it works fine for a <code>h2</code> level header, but fails for the <code>h1</code> level header.</p>
  
  <p>Text prior to markdown parsing, no trailing whitespaces for newlines:</p>
  
  <pre><code>This is an H1
  \=============
  
  This is an H2
  \-------------
  </code></pre>
  
  <p>Text output from markdown parsing:</p>
  
  <p>This is an H1
  \=============</p>
  
  <p>This is an H2
  -------------</p>
  
  <p>I'm aware of the flavour issues with markdown, and the originals lacking specifications and implementation spawning them. Still, what is the correct way to escape a <code>h1</code> level <code>setext</code> header in markdown, if at all possible?</p>