Clarify difference in create-project related scripts
Clarify difference in create-project related scripts

I wasn't entirely clear the difference between post-root-package-install and post-create-project-cmd, so this is an effort to clarify (as to the best of my understanding.)
localheinz/composer,naderman/composer,staabm/composer,composer/composer,milleruk/composer,stof/composer,alcohol/composer,nicolas-grekas/composer,stefangr/composer,johnstevenson/composer