Add `Avg` function to slice #169

	name: Tests

	on:
	push:
	tags:
	branches:
	pull_request:

	jobs:

	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: 1.18
	stable: false

	- name: Build
	run: make build

	- name: Test
	run: make test

	- name: Test
	run: make coverage

	- name: Codecov
	uses: codecov/codecov-action@v2
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	file: ./cover.out
	flags: unittests
	verbose: true

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