Rename branch to main and filter build to reflect badge #48

	name: test
	on: [push]
	jobs:

	build:
	name: Test and Build
	runs-on: macos-latest
	steps:

	- name: Set up Go 1.16
	uses: actions/setup-go@v2
	with:
	go-version: 1.16.3
	id: go

	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: cache
	uses: actions/cache@v2
	with:
	path: ~/go/pkg/mod
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.os }}-go-
	- name: Get dependencies
	if: steps.cache.outputs.cache-hit != 'true'
	run: go mod download

	- name: Test
	run: go test ./pkg/*

	- name: Build
	run: go build

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