Added some ergonomics fixes

Updated readme with emoji info

Added emoji command

This can be used to list information about slack emoji and has a flag
for outputing a count per user. Need to revist output and file output as
I think it might be broken

Fixed some user docs and moved the cmd to build into a directory called smack so it inherits its name

Forgot to add an example config and fixed the go import

Fixed stricter markdown rendering

Added license and fixed stricter markdown rendering

Fixed formatting for markdown

Initial commit for public conusmption