Write documentation

[jarekwg]

Current documenation is limited to the README (and perhaps tests), which is enough to get started, but would be nice to offer a little more..

[rehmanjaffersayani]

unable to setup with the package. The documentation is not clear
It would be great if you can upload an example just for fetching the company names or something.

[jarekwg]

unable to setup with the package. The documentation is not clear
It would be great if you can upload an example just for fetching the company names or something.

Since this is becoming more of a walkthrough, I've moved this conversation to #34, so as to not distract from the purpose of this issue.