Getting Started with Math

I have reviewed this updated chapter and made some suggestions. Rafael
Lima, you may wish to look over what I’ve done. It’s in the WIP folder.
Jean

Hi Jean!

I have just reviewed all your suggestions. In my opinion, the improvements
you made to the chapter made it more concise, which is great for a chapter
in the Getting Started Guide.

I left comments on 2 changes related to those Notes/Tips. The reviewed
version is in the WIP folder.

Rafael