I want to use Font Awesome to have a nice icon in the
title of my blog site. How do I include the Font Awesome icon in the
<title> tag of my HTML file?
You're looking to add what's called a 'favicon' to your webpage.
IIRC the way that Replit handles favicons is as easy as uploading one to the root with the name
favicon.ico. If you can convert the Font Awesome icon to an ico, then that's all you'd need.