Railinstaller issues on mac: Step 5

I downloaded Railsinstaller @ http://railsinstaller.org/mac and am stuck
step 5. I downloaded sublime and have tried to create a ~/bin directory
my path by following some tutorials but not sure if that was successful
do not know how to check. Also, I am confused over the directions on
step 5
because they have terminal commands (Seen below) but when I plug them
there, the files are not found. As you can see, I’m new to this so I
appreciate the help! Thank you in advance.

  • You can now visit the folder of your rails application and open
    new rails app with Sublime Text
$ cd railsinstaller_demo

$ subl .