docs: add more documents #26

	name: Build programs

	on:
	push:
	pull_request:
	workflow_dispatch:

	jobs:
	build:
	runs-on: ubuntu-22.04
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.21'

	- name: Install dependencies
	run: \|
	set -e
	sudo apt-get update
	sudo apt-get install --yes build-essential pkgconf libelf-dev llvm-12 clang-12
	for tool in "clang" "llc" "llvm-strip"; do
	path=$(which $tool-12)
	test $(which $tool) && sudo mv $(which $tool){,.bak}
	sudo ln -sf $path ${path%-*}
	done

	git submodule update --init --recursive

	- name: build programs
	run: \|
	set -e
	bash ci.sh

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