Update README.md #1019

	name: Buildifier

	on:
	pull_request:
	branches: [ 'main' ]

	permissions:
	contents: read

	jobs:

	autoformat:
	name: Auto-format and Check
	runs-on: ubuntu-latest

	steps:
	- name: Set up Go 1.15.x
	uses: actions/setup-go@v4
	with:
	go-version: 1.15.x
	id: go

	- name: Check out code
	uses: actions/checkout@v3

	- name: Install Dependencies
	run: \|
	cd $(mktemp -d)
	GO111MODULE=on go get github.com/bazelbuild/buildtools/buildifier@3.2.0

	- name: Run buildifier
	shell: bash
	run: \|
	buildifier -mode=fix $(find . -name 'BUILD' -o -name 'WORKSPACE' -o -name '*.bzl' -type f)

	- name: Verify buildifier
	shell: bash
	run: \|
	# From: https://backreference.org/2009/12/23/how-to-match-newlines-in-sed/
	# This is to leverage this workaround:
	# https://github.com/actions/toolkit/issues/193#issuecomment-605394935
	function urlencode() {
	sed ':begin;$!N;s/\n/%0A/;tbegin'
	}
	if [[ $(git diff-index --name-only HEAD --) ]]; then
	for x in $(git diff-index --name-only HEAD --); do
	echo "::error file=$x::Please run buildifier.%0A$(git diff $x \| urlencode)"
	done
	echo "${{ github.repository }} is out of style. Please run buildifier."
	exit 1
	fi
	echo "${{ github.repository }} is formatted correctly."

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