Fix features navbar link not being set to 'current' style
<nav>
<a href="index.html">Home</a>
<a href="documentation.html">Documentation</a>
- <a href="features.html">Features</a>
+ <a href="features.html" class="current">Features</a>
<a href="https://github.com/Col-E/Recaf">Github</a>
</nav>
</div>
