gettingstarted: Update with our code review policy.

Change-Id: Ib73005d1734f91f98e73dc5d09171968dbaf9181

GettingStarted.md

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 For more information on how to use repo and git effectively, take a look at the
 [official documentation](https://source.android.com/setup/create/coding-tasks).
 
+### A Note on Code Review Policies
+
+In the Shodan project, we follow a "sticky +2" policy.
+
+What this means is that you *must* get a +2 Code Review from a peer, or a TL.
+Gerrit will automatically remove any +2 Code Review scores you receive when you
+upload a patchset. In this case, once a peer has given you a +2 Code Review, you
+are free to re-+2 your change yourself if the changes are minor or otherwise
+address comments in the CL.
+
+If you change significant parts of the CL post-+2, please ask for additional
+review from your peers in a reply. Note: two +1s does *not* count as a +2!
+
+You may *not* self-+2 your own CLs, no matter the urgency or how simple the
+change is! Resist the temptation! This policy is in place so that we can quickly
+get through code review and get our code submitted without requiring lots of
+round-trips with your reviewers.
+
+Please don't abuse this policy and use good judgement: if you don't know who to
+send a CL to, put one of the TLs on the review list, and they'll redirect it
+appropriately, or review your change. If we abuse the policy by +2-ing before
+peer review, this privilige will unfortunately have to be revoked, slowing down
+the entire team in the process, and possibly getting yourself in trouble with
+security/compliance.
+
+### Who are the TLs?
+
+At the time of this writing, the TLs are:
+
+Cindy Liu <hcindyl@>
+June Tate-Gans <jtgans@>
+Bangfei Pan <pbf@>
+Steve Xu <stevexu@>
+
+Finally, if you can't get one of the above people, please put Kai Yick
+<kingkai@> on the review line.
+
+*Special note if you're listed above*: you still must get your +2 from someone
+else -- we need the TLs to lead by example and demonstrate the appropriate
+behavior.
+
 ### How to sync my local copy with latest?
 
 ```bash