- Sass compiler (Libsass or Ruby Sass is supported) for compiling your CSS.
- [Autoprefixer](https://github.com/postcss/autoprefixer) for CSS vendor prefixing
-Should you require [build tools]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/build-tools/#tooling-setup), they are included for developing Bootstrap and it's docs, but they're likely unsuitable for your own purposes.
+Should you require [build tools]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/build-tools/#tooling-setup), they are included for developing Bootstrap and its docs, but they're likely unsuitable for your own purposes.
<a href="{{ site.download.source }}" class="btn btn-bd-purple" onclick="ga('send', 'event', 'Getting started', 'Download', 'Download source');">Download source</a>