<kbd> HTML tag breaks parsing

[adam-boduch]

Input:

<kbd>C</kbd> `foo`

Expected result:

<p><kbd>C</kbd> <code>foo</code></p>

Parsedown:

<kbd>C</kbd> `foo`

As you can see, parsedown does not parse text after <kbd> tag. It's wired because it works with other html tags.

[aidantwoods]

Seems this no longer occurs, but please reopen if you're still having the same issue in the latest version.