Fix broken formatting in http repository rules documentation page.
Fix broken formatting in http repository rules documentation page.

Fixes https://github.com/bazelbuild/bazel/issues/10990

RELNOTES:
PiperOrigin-RevId: 302550934

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