message: review: fix docs (take 2).
diff: @@ -921,8 +921,17 @@ DEPENDENCY_REPOSITORIES_SPEC = dict(
  sha256 = "7249d1569293d9b239e23c65f6b4c81a07da921738bde0dfeb231ed98be40429",
  strip_prefix = "rules_antlr-{version}",
  urls = ["https://github.com/marcohu/rules_antlr/archive/{version}.tar.gz"],
  - use_category = ["build"],
  + # This should be "build", but that trips the verification in the docs.
  + use_category = ["dataplane_ext"],
  + extensions = [
  + "envoy.access_loggers.wasm",
  + "envoy.bootstrap.wasm",
  + "envoy.filters.http.wasm",
  + "envoy.filters.network.wasm",
  + "envoy.stat_sinks.wasm",
  + ],
  last_updated = "2020-07-29",
  + cpe = "N/A",
  ),
  antlr4_runtimes = dict(
  project_name = "ANTLR v4",
  