Update Review Docs

[nemani]

http://api.coala.io/en/latest/Developers/Review.html

A lot of policy has been changed, that has not been reflected in the docs.
The ones I know of currently are:
[ ] Ack is now supposed to be done by maintainers only, other should use "Looks good" or "LGTM" (Lets get this merged)
[ ] We are not using rultor anymore.

[himanshu1603]

@nemaniarjun can I take up this issue?

[nemani]

Sure a maintainer will be here to assign you soon, or ask on gitter :)

[Makman2]

Please accept the org invite @himanshu1603 , then you can be assigned.

[monsij]

Can I be assigned this issue @Makman2 due to user inactivity?