Make sure one can copy NPM command

[Nyholm]

Comments cannot be copies

https://symfony.com/doc/current/frontend/encore/installation.html#installing-encore-in-symfony-applications

[javiereguiluz]

Thanks for this Tobias. I understand the issue ... but I wonder if showing two fully-working examples would make some people think that they need to run both commands.

Maybe we should allow to copy commented contents in commands (except the prompt contents)?

[Nyholm]

but I wonder if showing two fully-working examples would make some people think that they need to run both commands.

I doubt that is the case.

I like that I cannot copy comment, but could one only excluded comments like

# Cannot copy me
# $ echo "can copy me since I start with '# $'"

[dbrumann]

I think it's already clear from the surrounding text that this an alternative to yarn.

If I remember correctly yarn/npm will issue a warning to the user if they encounter each others lock file. I think both the text in the docs and that warning should be enough hints to prevent issues.

[javiereguiluz]

You made me change my mind. I've merged this in 3.4 (and all the other branches). Thanks!