Proposition to improve document.

[digdas1]

In the part which explains how to start with Mac OS X Environment, under " Install CMake "
the note should be different.
The download, the dmg, you just can install cmake.
Install the Command Line Links is done like this:

iii Run CMake application from Applications
Open in the menu, Tools / How to install for Commandline Use
and follow the instructions. (3 possible ways of doing this are listed)