Update documentation to reference change of unittest.bzl
Update documentation to reference change of unittest.bzl

RELNOTES: None.
PiperOrigin-RevId: 231970476

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