As a developer I need to know how to work with git, github, branches, CI, CD & testing, etc so that I may work and use these tools appropriately.
Update the contribution guide: http://docs.openlmis.org/en/latest/contribute/contributionGuide.html#git-branching-pull-requests
code review (less on what's in the review, more how it works with branches)
testing and sonar analysis (gates to be passed before review)
anything more from https://trunkbaseddevelopment.com/