docs: update a template of unit file for systemd and add comment #17

	name: Build and Test

	on:
	push:
	branches: [ '**' ]
	paths:
	- '.github/workflows/**'
	- 'main.go'
	- 'go.*'
	- 'rcap/**'

	jobs:

	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v4

	- name: Install required packages
	run: \|
	sudo apt update
	sudo apt install -y libpcap-dev

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

	- name: Test
	run: go test -v -race -covermode=atomic -coverprofile=coverage.out ./...

	- name: Upload code coverage to Codecov
	uses: codecov/codecov-action@v3
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	fail_ci_if_error: true
	verbose: true

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