Put link in readme to the REAL requirejs

[fritz stelluto]

Hi.

Most people who download this are really looking for requirejs and get confused because the description is similar. It would make sense to put it somewhere at the top of the README / NPM info that this is NOT requirejs, to avoid wasting peoples's time.

Thanks.

[Marcus Westin]

Makes sense :) this repo is not really used anymore. If your PR I'll merge in.