Start a static file server in the current directory, inject a livereload snippet into the HTML files served, and update the browser without refreshing whenever anything changes.
npm install -g barkeep
cd {{ your project's directory }}
barkeep
This works by automatically inserting a liverelead script right before the close of the body element. This might not work for all set ups. You can insert the script manually by adding this tag to your HTML:
<script src="http://localhost:35729/livereload.js"></script>