Add libwebrtc/README.md explaining how to build and use it (#499) #1705

	# Copyright 2023 LiveKit, Inc.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: Tests

	on:
	push:
	branches: ["main"]
	pull_request:
	branches: ["main"]

	env:
	CARGO_TERM_COLOR: always
	RUST_LOG: debug

	jobs:
	build:
	strategy:
	fail-fast: false
	matrix:
	include:
	# Platform supports is limited for tests (no aarch64)
	- os: windows-2019
	target: x86_64-pc-windows-msvc
	- os: macos-13
	target: x86_64-apple-darwin
	- os: ubuntu-20.04
	target: x86_64-unknown-linux-gnu

	name: Test (${{ matrix.target }})
	runs-on: ${{ matrix.os }}
	steps:
	- name: Install Rust toolchain
	run: \|
	rustup update --no-self-update stable
	rustup target add ${{ matrix.target }}

	- name: Install linux dependencies
	if: ${{ matrix.os == 'ubuntu-20.04' }}
	run: \|
	sudo apt update -y
	sudo apt install -y libssl-dev libx11-dev libgl1-mesa-dev libxext-dev

	- uses: actions/checkout@v3
	with:
	submodules: true

	- name: Test
	run: cargo test --release --verbose --target ${{ matrix.target }} -- --nocapture

Provide feedback