update README.md #18

	---
	name: Build examples

	on:
	- pull_request
	- push

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version:
	- 3.8
	name: Build examples
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Setup python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	architecture: x64

	- name: Install pip
	run: \|
	python -m pip install --upgrade pip

	- name: Install and update platformio
	run: \|
	pip install -U platformio
	pio update

	- name: Build examples
	run: \|
	for D in `echo examples/*`; do
	echo "Build ${D}"
	(cd ${D} && pio run -v)
	done

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