Bump mistune from 0.7.1 to 0.8.1 in /assignment2

[dependabot]

Bumps mistune from 0.7.1 to 0.8.1.

Changelog

Sourced from mistune's changelog.

Changelog

Here is the full history of mistune.

Version 0.8.1

Released on Nov. 07, 2017

Security fix CVE-2017-16876, thanks Dawid Czarnecki

Version 0.8

Released on Oct. 26, 2017

Remove non breaking spaces preprocessing
Remove rev and rel attribute for footnotes
Fix bypassing XSS vulnerability by junorouse

This version is strongly recommended, since it fixed

a security issue.
Version 0.7.4

</code></pre>

<p>Released on Mar. 14, 2017</p>

<ul>

<li>Fix escape_link method by Marcos Ojeda</li>

<li>Handle block HTML with no content by David Baumgold</li>

<li>Use expandtabs for tab</li>

<li>Fix escape option for text renderer</li>

<li>Fix HTML attribute regex pattern</li>

</ul>

<p>Version 0.7.3</p>

<pre><code>

Released on Jun. 28, 2016

Fix strikethrough regex
Fix HTML attribute regex
Fix close tag regex

Version 0.7.2

</code></pre>

<p>Released on Feb. 26, 2016</p>

<ul>

<li>Fix <code>hard_wrap</code> options on renderer.</li>

</ul>

<!-- raw HTML omitted -->

</blockquote>

<p>... (truncated)</p>

</details>

<details>

<summary>Commits</summary>
<ul>

<li><a href="https://github.com/lepture/mistune/commit/cef69acaa506567595e95ab6ecea25a806de622e&quot;&gt;&lt;code&gt;cef69ac&lt;/code&gt;&lt;/a> Add change log for v0.8.1</li>

<li><a href="https://github.com/lepture/mistune/commit/5f06d724bc05580e7f203db2d4a4905fc1127f98&quot;&gt;&lt;code&gt;5f06d72&lt;/code&gt;&lt;/a> Fix CVE-2017-16876</li>

<li><a href="https://github.com/lepture/mistune/commit/7f7f106a717e6cf58012304e56b41d6fb2b98e5f&quot;&gt;&lt;code&gt;7f7f106&lt;/code&gt;&lt;/a> Version bump 0.8</li>

<li><a href="https://github.com/lepture/mistune/commit/f8ac83ff6d49c0e850436b8d9e57b71c3b2c4d57&quot;&gt;&lt;code&gt;f8ac83f&lt;/code&gt;&lt;/a> Cleanup appveyor CI</li>

<li><a href="https://github.com/lepture/mistune/commit/dda2ace2c74b534c82ba3a9571ee8e0bddba9e0e&quot;&gt;&lt;code&gt;dda2ace&lt;/code&gt;&lt;/a> Fix CI testing</li>

<li><a href="https://github.com/lepture/mistune/commit/ab8f7de8bc78c2a88f9e01522b8a3a0aa8cd9416&quot;&gt;&lt;code&gt;ab8f7de&lt;/code&gt;&lt;/a> Merge pull request <a href="https://github-redirect.dependabot.com/lepture/mistune/issues/140&quot;&gt;#140&lt;/a> from junorouse/master</li>

<li><a href="https://github.com/lepture/mistune/commit/d6f0b6402299bf5a380e7b4e77bd80e8736630fe&quot;&gt;&lt;code&gt;d6f0b64&lt;/code&gt;&lt;/a> Fix bypassing XSS vulnerability.</li>

<li><a href="https://github.com/lepture/mistune/commit/5b8c3f7db4321bada0b955a9fb833a3faba4a67f&quot;&gt;&lt;code&gt;5b8c3f7&lt;/code&gt;&lt;/a> Change donate link</li>

<li><a href="https://github.com/lepture/mistune/commit/4c117151ab536004599b0d5a8079ccda84cc5472&quot;&gt;&lt;code&gt;4c11715&lt;/code&gt;&lt;/a> Add missing regex import to Lexers example (<a href="https://github-redirect.dependabot.com/lepture/mistune/issues/129&quot;&gt;#129&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/lepture/mistune/commit/e9e2066fee8ea4970cec17f1e480031db96906b9&quot;&gt;&lt;code&gt;e9e2066&lt;/code&gt;&lt;/a> Update benchmark for misaka</li>

<li>Additional commits viewable in <a href="https://github.com/lepture/mistune/compare/v0.7.1...v0.8.1&quot;&gt;compare view</a></li>

</ul>

</details>
<br />



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