docs: redo getting started docs and update brand/install #300

	# TODO(jaredallard): Deviated from stencil-golang.
	# Removed golangci-lint because we put it in linters.yaml
	name: tests
	on:
	push:
	branches:
	- main
	pull_request:

	permissions:
	contents: read

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref }}
	cancel-in-progress: true

	env:
	COVERFILE: coverage.out

	jobs:
	gotest:
	name: go test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: jdx/mise-action@v2
	with:
	experimental: true
	env:
	GH_TOKEN: ${{ github.token }}
	- name: Get Go directories
	id: go
	run: \|
	echo "cache_dir=$(go env GOCACHE)" >> "$GITHUB_OUTPUT"
	echo "mod_cache_dir=$(go env GOMODCACHE)" >> "$GITHUB_OUTPUT"
	- uses: actions/cache@v4
	with:
	path: ${{ steps.go.outputs.cache_dir }}
	key: ${{ runner.os }}-go-build-cache-${{ hashFiles('**/go.sum') }}
	- uses: actions/cache@v4
	with:
	path: ${{ steps.go.outputs.mod_cache_dir }}
	key: ${{ runner.os }}-go-mod-cache-${{ hashFiles('go.sum') }}
	- name: Download dependencies
	run: go mod download
	- name: Run Go tests
	run: mise run coverage
	- name: Upload test coverage
	uses: codecov/codecov-action@v4
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	files: ${{ env.COVERFILE }}
	fail_ci_if_error: true

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