Add more comments #487

	# coverage.yml Generate and upload Go code coverage report to Codecov.
	# https://github.com/onflow/atree/blob/main/.github/workflows/coverage.yml

	name: coverage

	# Remove permissions from top level and grant in jobs.
	permissions: {}

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest

	permissions:
	contents: read

	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 2

	- uses: actions/setup-go@v4
	with:
	go-version: '1.19'
	check-latest: true

	- name: Get dependencies
	run: go get -v -t -d ./...

	- name: Build project
	run: go build ./...

	- name: Generate coverage report
	run: go test -timeout 60m -race -coverprofile=coverage.txt -covermode=atomic

	- name: Upload coverage report to Codecov
	uses: codecov/[email protected]
	with:
	files: ./coverage.txt
	fail_ci_if_error: false # we can set this to true after "Could not find a repository" upload error is fixed
	verbose: true # optional (default = false)

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