Website is missing a favicon

[pjayathissa]

The budslab website is missing a favicon. The small icon that appears in the the left corner of a browser.

It's a minor point, but would make the website look more professional.

[cmiller8]

good call -- found this: https://medium.com/@xiang_zhou/how-to-add-a-favicon-to-your-jekyll-site-2ac2179cc2ed to help