Allow addition content in sidebar (like navbar)

[jhildenbiddle]

Docsify ignores content in the sidebar markdown file that is not contained within an li element.

For example, this markdown:

<p>Foo</p>

- Some Text

<p>Bar</p>

Will render as:

<div class="sidebar-nav">
  <ul>
    <li>Some Text</li>
  </ul>
</div>

The two paragraph tags are ignored (as would any content not contained within an li element). I would expect the output to be as follows:

<div class="sidebar-nav">
  <p>Foo</p>
  <ul>
    <li>Some Text</li>
  </ul>
  <p>Bar</p>
</div>

Rendering all content found in the sidebar markdown file would match docsify's behavior of rendering additional content found in the navbar markdown file. For example:

The following navbar markdown:

Foo

- Some Text

Bar

Is rendered as the following HTML:

<nav class="app-nav">
  <p>Foo</p>
    <ul>
      <li>Text</li>
    </ul>
  <p>Bar</p>
</nav>

Ideally, the sidebar would offer the same flexibility.

Thanks!

[jhildenbiddle]

Thank you! 🎉