Update README.md to add CI build badge #3

	# This is a basic workflow to help you get started with Actions

	name: CI

	# Controls when the action will run. Triggers the workflow on push or pull request
	# events but only for the master branch
	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2

	# https://stackoverflow.com/questions/73693257/how-to-fix-could-not-find-system-library-libudev-when-installing-cargo-flash
	- name: Prepare
	run: echo "Installing dependencies" && sudo apt install -y pkg-config libusb-1.0-0-dev libftdi1-dev libudev-dev

	# Runs a single command using the runners shell
	- name: Build
	run: echo "Building project on Ubuntu version $(lsb_release -ds)" && cargo build --manifest-path gq_gmc/Cargo.toml

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