docs: improve readme and add screenshot #6

	name: Build with cargo

	on: [push, pull_request]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build:
	name: Build

	runs-on: ubuntu-22.04

	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Cache build artifacts
	uses: actions/cache@v4
	with:
	path: target/**
	key: cargo
	- name: Install rust toolchain
	run: rustup update stable && rustup default stable
	- name: Install dependencies
	run: sudo apt install libjack-jackd2-dev
	- name: Build with cargo
	run: cargo build --verbose --release
	- name: Upload artifacts
	uses: actions/upload-artifact@v4
	with:
	name: loudness-server
	path: target/release/loudness-server

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