when I installed the mezzio via the following commmand, I got a skeleton.
composer create-project mezzio/mezzio-skeleton mezzio
I thought it is a little complicate 
when I installed the mezzio via the following commmand, I got a skeleton.
composer create-project mezzio/mezzio-skeleton mezzio
I thought it is a little complicate 
If you are lazy, like me, then use the Mezzio command-line tool.