I'm following this tutorial to import fontello in my project.
But in step 5 I dont have fontello.css file.
So, in your App.js import fontello
import "./fontello/css/fontello.css"
As you can see in my project I dont have that file. So How Can I Import Fontello to my project??

Well it seems like the cli actually set all your file names in css starting with
my-iconinstead offontelloTo make you code work, you can import the css like
and it should work the same
EDIT:
Another solution if for you to set the name field in
config.jsontofontelloand then runfontello-cli install, this will lead to the css file names to be prefixed with the namefontelloand you can import it like it is mentioned in the medium article