Auto-generate annotation docs (#11835)

Co-authored-by: Ricardo Katz <rikatz@users.noreply.github.com>

hack/update-annotation-doc.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Copyright 2024 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+
+SCRIPT_ROOT=$(dirname "${BASH_SOURCE}")/..
+ANNOTATIONFILE="${SCRIPT_ROOT}/docs/user-guide/nginx-configuration/annotations-risk.md"
+
+go run "${SCRIPT_ROOT}"/cmd/annotations/main.go -output "${ANNOTATIONFILE}"