doc: add documentation on naming functions in a Kptfile #1277

	# Copyright 2021 The kpt 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.

	name: CheckSite
	on:
	pull_request:
	paths:
	- "site/**"
	push:
	paths:
	- "site/**"
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	# disabling href checker https://github.com/GoogleContainerTools/kpt/issues/3157
	# Re-enable it by replacing it with robust mechanism
	# - uses: actions/checkout@v2
	# with:
	# repository: etefera/href-checker
	# ref: docsify
	# path: href-checker
	- uses: actions/setup-node@v3
	with:
	node-version: '16'
	- name: Lint site content
	run: npm i && npm run lint-check
	working-directory: site
	# - name: Install Site Checker
	# run: yarn install
	# working-directory: href-checker
	# - name: Set up Docker Buildx
	# uses: docker/setup-buildx-action@v1
	# - name: Run Site Checker
	# run: make site-check

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