feat: favicon (#301)

Author: SamDesmondKing

_config.yml

@@ -21,6 +21,8 @@ baseurl: "" # the subpath of your site, e.g. /blog
 url: "" # the base hostname & protocol for your site, e.g. http://example.com
 github_username: tidalmigrations
 
+favicon_ico: "/assets/favicon.ico"
+
 # Build settings
 markdown: kramdown
 theme: just-the-docs