Add docgen all script and update documentation #5552

	# Copyright 2023 Google LLC
	#
	# 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.

	name: Test Package Paths

	on: pull_request

	jobs:
	test:
	name: Test Package Paths
	runs-on: ubuntu-latest

	steps:
	- name: Checkout Repo
	uses: actions/checkout@master
	with:
	# This makes Actions fetch all Git history so run-changed script can diff properly.
	fetch-depth: 0
	- name: Set up Node (20)
	uses: actions/setup-node@v3
	with:
	node-version: 20.x
	- name: Yarn install
	run: yarn
	- name: Yarn build
	run: yarn build
	- name: Swap in public typings
	run: yarn release:prepare
	- name: Check paths
	run: yarn ts-node scripts/ci-test/check-paths.ts

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