Update README.md #352

	name: client-c++

	on:
	push:
	pull_request:
	branches:
	- 'main'

	jobs:

	test:
	runs-on: ubuntu-latest
	container: ubuntu:latest

	services:
	model:
	image: linusseelinger/model-muq-beam:latest
	ports:
	- 4242:4242

	steps:
	-
	name: Checkout
	uses: actions/checkout@v2
	-
	name: Dependencies
	run: \|
	apt update; DEBIAN_FRONTEND="noninteractive" apt install -y g++
	-
	name: Build and run
	run: \|
	cd testing/clients && g++ -std=c++17 test_c++.cc -pthread -I../../lib/ -o test_c++ && ./test_c++

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