updating python to 3.8 and adding section in README for asv dev #78

	name: build

	on:
	pull_request:
	push:
	branches:
	- main
	tags:
	- '*'

	# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
	# Only cancels-in-progress on PRs (head_ref only defined in PR, fallback run_id always unique)
	concurrency:
	group: ${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:

	actions-linting:
	uses: cvxpy/actions/.github/workflows/linting.yml@main

	tests:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: install and test
	run: \|
	pip install .
	asv check

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