Better explanations about the node version

[doubleface]

The template does not work if you run it with node 4

[enguerran]

Do you know which dependency doesn't work with node 4?

[doubleface]

One of the (many) attendees did get this problem but @Gara64 may know it. He did have this problem, too.

[paultranvan]

ES6 code was triggering an error after running yarn watch:standalone.
And more recently (I noticed yersterday), [email protected] explicitly asks for a node versions >=5 after yarn install.

[enguerran]

Ok, the fact remains we need to disclaim that you need node 6+ if you want to play with that tool and its dependency.