title: Jupyter notebook cannot convert correctly for inline or html markdown
body: <p>I was trying a pynb and found it's not working properly, what should I do to convert the above to the below? Maybe it's a reason of parse_html and parse_inline, but I don't know how to operate the environment.
  <a href="https://i.stack.imgur.com/VMV9s.png" rel="nofollow noreferrer">The above inline <strong>x.copy_(y)</strong> is not executed</a>
  I first try this in jupyterlab, but seems notebook is not working too.</p>
  
  <pre><code>&lt;div class="alert alert-info"&gt;&lt;h4&gt;Note&lt;/h4&gt;&lt;p&gt;Any operation that mutates a tensor in-place is post-fixed with an ``_``.
      For example:  (```x.copy_(y)```), ``x.t_()``, will change ``x``.&lt;/p&gt;&lt;/div&gt;
  
  You can use standard NumPy-like indexing with all bells and whistles!
  
  ```x.copy_(y)```, ``x.t_()``, will change ``x``
  </code></pre>