fix formatting in repository_rule doc
fix formatting in repository_rule doc

RELNOTES: None
PiperOrigin-RevId: 173399501

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