Add documentation for the action graph dump command.
Add documentation for the action graph dump command.

RELNOTES: None
PiperOrigin-RevId: 187834884

ulfjack/bazel,akira-baruah/bazel,dropbox/bazel,werkt/bazel,meteorcloudy/bazel,cushon/bazel,safarmer/bazel,dslomov/bazel-windows,dslomov/bazel,ulfjack/bazel,meteorcloudy/bazel,dslomov/bazel-windows,katre/bazel,dropbox/bazel,dslomov/bazel,katre/bazel,dslomov/bazel-windows,ButterflyNetwork/bazel,akira-baruah/bazel,dropbox/bazel,meteorcloudy/bazel,twitter-forks/bazel,ButterflyNetwork/bazel,dslomov/bazel,bazelbuild/bazel,safarmer/bazel,ulfjack/bazel,aehlig/bazel,akira-baruah/bazel,werkt/bazel,twitter-forks/bazel,bazelbuild/bazel,dslomov/bazel,davidzchen/bazel,twitter-forks/bazel,perezd/bazel,dropbox/bazel,katre/bazel,aehlig/bazel,cushon/bazel,davidzchen/bazel,katre/bazel,werkt/bazel,aehlig/bazel,meteorcloudy/bazel,safarmer/bazel,perezd/bazel,ButterflyNetwork/bazel,ulfjack/bazel,cushon/bazel,dslomov/bazel,bazelbuild/bazel,meteorcloudy/bazel,safarmer/bazel,meteorcloudy/bazel,twitter-forks/bazel,davidzchen/bazel,safarmer/bazel,perezd/bazel,safarmer/bazel,dslomov/bazel,akira-baruah/bazel,ButterflyNetwork/bazel,ButterflyNetwork/bazel,katre/bazel,ulfjack/bazel,aehlig/bazel,dslomov/bazel-windows,werkt/bazel,ButterflyNetwork/bazel,ulfjack/bazel,twitter-forks/bazel,bazelbuild/bazel,akira-baruah/bazel,dslomov/bazel-windows,perezd/bazel,aehlig/bazel,cushon/bazel,akira-baruah/bazel,dslomov/bazel-windows,cushon/bazel,bazelbuild/bazel,davidzchen/bazel,dropbox/bazel,twitter-forks/bazel,davidzchen/bazel,meteorcloudy/bazel,davidzchen/bazel,perezd/bazel,aehlig/bazel,werkt/bazel,katre/bazel,cushon/bazel,werkt/bazel,aehlig/bazel,davidzchen/bazel,ulfjack/bazel,dslomov/bazel,perezd/bazel,perezd/bazel,twitter-forks/bazel,bazelbuild/bazel,dropbox/bazel