docs: add new docs scaffolding to wiki #7

	name: Copy `docs/` to repo wiki
	on:
	push:
	branches:
	- main
	- DEVREL-34-document-basic-usage
	paths:
	- "README.md"
	- "docs/**"
	workflow_dispatch:

	jobs:
	copy-docs:
	name: Copy contents of `docs/` to wiki repo
	runs-on: ubuntu-latest
	steps:

	# Checkout the present repo under the `repo/` dir
	- name: Checkout base repo
	uses: actions/checkout@v2
	with:
	path: repo

	- name: Checkout wiki repo
	uses: actions/checkout@v2
	with:
	repository: "${{ github.repository }}.wiki"
	path: wiki

	# Copy the contents of `docs/` to `wiki/`
	# This will overwrite any existing files in the wiki repo, because
	# the contents of the `wiki/` dir are deleted before the copy, ensuring
	# that the wiki repo is always in sync with the base repo.
	- name: Copy docs/ to wiki/
	run: \|
	rm -rf wiki/*.md

	cp -r repo/docs/* wiki/
	mv wiki/README.md wiki/Home.md

	- name: Commit and push changes to wiki
	run: \|
	cd wiki

	git config --global user.name "GitHub Actions Wiki Updater"
	git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"

	git add .
	git commit --allow-empty -m "Update wiki to latest changes at ${GITHUB_SHA::6}"
	git push

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