Add GitHub Actions workflow for Jekyll site CI

Commit

43 days ago

Add GitHub Actions workflow for Jekyll site CI Signed-off-by: 𝐎𝐧𝐞 𝐅𝐢𝐧𝐞 𝐒𝐭𝐚𝐫𝐬𝐭𝐮𝐟𝐟 <onefinestarstuff@gmail.com>