Closes #93 Update readme and doc script

[vbshuliar]

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[vbshuliar]

The create_adams_data.R script has to be rerun in order to generate new scripts with the updated documentation. I can't do it from my PC as GitHub puts a limit on the amount of API calls.

[manciniedoardo]

Great work! Left a couple of comments.

[manciniedoardo]

@vbshuliar in addition to my above review can you please also restructure the reference page so that it talks about datasets and not functions? thanks

[manciniedoardo]

LGTM - thanks @vbshuliar