I realized “–watch” in jekyll blogging engine. That is perfectly working so far. yay :)

pub 4096R/102EFFB8 2017-04-02 Kyohei Moriyama (sasukeh) flogofrein@gmail.com
Primary key fingerprint: 2BE2 1FA9 8F72 C692 1E37 6072 5440 EEBA 102E FFB8