[DOC] Clarify `PREFIX` usage in environment variables (#5065) #383

	name: CI docs

	on:
	# NOTE: github.event context is push payload:
	# https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#push
	push:
	branches:
	- main
	paths:
	- '.github/workflows/docs.yml'
	- 'docs/**'

	# NOTE: github.event context is pull_request payload:
	# https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#pull_request
	pull_request:
	paths:
	- '.github/workflows/docs.yml'
	- 'docs/**'

	jobs:
	docs:
	if: '!github.event.repository.fork'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Setup
	run : \|
	make env-docs
	- name: Build the docs
	run : \|
	cd docs
	conda run --name conda-build-docs make html

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