Sounds good. I'm having some problems updating Ruby on my Mac here.

My Ruby version is:
ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]

So I guess need to update it to run your bot, but like I said, I can't get it to work right.

Your instructions said:
$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

But that didn't work for me. I went to Homebrew site and got this code, and it worked:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Now I'm trying to follow your next instruction:
$ \curl -sSL https://get.rvm.io | bash -s stable

But that gets me this:
-bash: $: command not found

So I think I understand the bot and how to run it, but can you please help advise me on update Ruby.