infra-manual/doc
Andreas Jaeger b68e0d6009 mention playbooks for backporting
We need playbooks as well in stable branches, add this information.

Change-Id: If36eed0a720f3e4747b81359687a9e5df417c0fe
2017-10-16 11:47:24 -07:00
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source mention playbooks for backporting 2017-10-16 11:47:24 -07:00