Update CONTRIBUTING.md #35

	---
	name: 'tfplugindocs'
	on:
	pull_request:
	permissions:
	contents: read
	jobs:
	tfplugindocs:
	permissions:
	contents: read
	pull-requests: read
	runs-on: ubuntu-latest
	steps:
	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: "1.20"
	- name: Check out code into the Go module directory
	uses: actions/checkout@v3
	- name: Get dependencies
	run: go mod download
	- name: Run tfplugindocs
	run: go generate ./...
	- name: Fail if any files changed
	shell: bash
	run: \|
	if [[ $(git status --porcelain=v1 docs/ \| wc -l) -ne 0 ]]; then
	echo "Please ensure tfplugindocs changes are committed to docs/"
	echo "Changed files:"
	git diff --name-only docs/
	git status docs/
	exit 1
	fi

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