https://stackoverflow.com/questions/45731445/particles-js-how-to-change-background-color-between-lines- https://codepen.io/metagrapher/pen/tgcLl
- https://www.gradient-animator.com/
- use cloudflare for cdn (net to the moon)
move to branch that we want to deploy to heroku
$ git checkout branch-to-deploy
use heroku cli to add a remote location to deploy our app
$ heroku git:remote -a app-name
push git repo normally but we will send to our heroku remote.
$ git push heroku branch-to-deploy:main