@chris-vdp definitely puts you in the right direction. The comments in http://shekhardesigner.github.io/fe-kickstart/assets/css/styleguide/base-base.html are not recognized as valid markdown. In your Less code replace:
/* Base
===============
This is a simple Base CSS
<div class="h1">H1 type headers</div>
*/
with:
/*
Base
===============
This is a simple Base CSS
<div class="h1">H1 type headers</div>
*/
After removing the wrong
tabs your style guide will look like that shown below: