composer: added platform
This will prevent installation of packages depending on PHP 7.2 Is that intentional?
I think it's better for every web project to have config/platform than to care every time I run a composer update whether I used right version of PHP. And because this is the basis of the web project, it should be there.
Yes, this is good for begginers. But it would be nice to mention it in readme/docs.
Can you please update doc? I dont know what mention you mean.