https://browsersync.io/
https://github.com/Browsersync/browser-sync
https://www.npmjs.com/package/browser-sync

gulp
https://github.com/Browsersync/recipes
https://browsersync.io/docs/gulp
https://webref.ru/dev/automate-with-gulp/live-reloading

2016
https://asciinema.org/a/42553

2014
https://www.youtube.com/watch?v=Rv5f_v5gqw4

browser-sync start --server --files="index.html"