How to pull a template on a Symfony 4 project?

Question

symfony

Help, please, pull the template on the project - it does not work.
I need to pull this template
https://adminlte.io/docs/2.4/installation onto this project https://github.com/Kshevchenko94/app_symfony.ru
What actions do I need to take to pull the template?
I read the documentation here https://symfony.com/doc/current/frontend.html
but nothing happened.
I say right away I don’t understand npm