Fix #59: Sometimes messages sent via UART are lost #148

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

	name: GH-Pages-Check

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

	# 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"
	doxygen:
	# 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
	with:
	submodules: recursive

	# Install Doxygen
	- name: Install Doxygen
	run: sudo apt-get install -qq doxygen

	# Generate Doxygen
	- name: Generate docs
	run: doxygen

	# Error if doxygen.error has content
	- name: Check documentation has no errors
	run: \|
	if [[ $(wc -l <doxygen.error) -gt 0 ]]
	then
	cat doxygen.error
	exit 1
	fi

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