~/.bashrc may not have existed yet, in which case you were right to create it. What you can do is add a line to ~/.bash_profile that will run the ~/.bashrc file, as such:
Since you're sourcing the file, it's not required that it have a "#!/bash/sh" as it's first line. Sourcing (either 'source' or a period '.') means the contents of the file a put in the calling script. It's kind of like an Include line in programming.
Anyways, add the line above to your ~/.bash_profile, and log out and back in. Then it should be working for you.
If you don't want to logout and back in, just source it from a terminal yourself:
And it should be working.