Quick start section

[fuhrmanator]

My first attempt to use TinyLogger was mostly positive, but I realized I was not using it properly because the same message was appearing many times. This is because I was using addFileLoggerNamed: in my code, not realizing I had to remove the previous logger(s). So, I suggest adding a quick start to get the basic use down.

[fuhrmanator]

Alternatively, perhaps addFileLoggerNamed: can replace any previously added ones that have the same name? It seems strange why one would want more than one logger to the same file.

[jecisc]

@fuhrmanator After a discussion with you, I think I'll add new features to TinyLogger and update the documentation accordingly.

I can ask for your review of the documentation I'll update before release if you wish.

[jecisc]

I'll close this one since I have it as part of #22 with some modifications (And I created a dev branch)
Thank you very much!