Guide 2 needs a little update

Hi, installation instructions in the doc2.0 are outdated :

http://www.yiiframework.com/doc-2.0/guide-start-installation.html

It should be, like in the download section :

http://www.yiiframework.com/download/

I think it can be confusing for newcomers.

This weekend there will be release version and the guide will become correct.