favicon: replace bootstrap ico with f-of-x

Signed-off-by: Michael Turquette <mturquette@deferred.io>
_config.yml: upgrade author & description fields

Signed-off-by: Michael Turquette <mturquette@deferred.io>
index.html: update title

Signed-off-by: Michael Turquette <mturquette@deferred.io>