After having start with Angular Universal on this tuto :
<https://coursetro.com/posts/code/68/Make-your-Angular-App-SEO-Friendly-(Angular-4-+-Universal)> 

I would like to know what is the next step for deploy my app to Heroku (or other). I have search a lot but i didn't find a concrete tutorial that explain me how to do it properly. Does anyone have a good source ? 
Thank you in advance