fixed broken link in README.rst #77

	name: PlatformIO CI

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-20.04
	timeout-minutes: 10
	strategy:
	fail-fast: false
	max-parallel: 20
	matrix:
	boards: ['all']
	example: [
	ChangeUID,
	DumpInfo,
	firmware_check,
	FixBrickedUID,
	MifareClassicValueBlock,
	MinimalInterrupt,
	ReadUidMultiReader,
	rfid_default_keys,
	rfid_write_personal_data,
	Ntag216_AUTH,
	ReadNUID,
	RFID-Cloner,
	rfid_read_personal_data,
	]
	#include:
	# - boards: 'avr_only'
	# example: AccessControl

	steps:
	- uses: actions/checkout@v4
	- name: Cache pip
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: ${{ runner.os }}-pip-
	- name: Cache PlatformIO
	uses: actions/cache@v4
	with:
	path: ~/.platformio
	key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
	- name: Set up Python
	uses: actions/setup-python@v5
	- name: Install PlatformIO
	run: \|
	python -m pip install --upgrade pip
	pip install --upgrade platformio
	- name: Run PlatformIO all Boards
	if: ${{ contains(matrix.boards, 'all') }}
	# test all
	run: platformio ci --lib=. --board=uno --board=megaatmega1280 --board=due --board=zero --board=d1_mini
	env:
	PLATFORMIO_CI_SRC: examples/${{ matrix.example }}/${{ matrix.example }}.ino
	- name: Run PlatformIO avr Boards
	if: ${{ contains(matrix.boards, 'avr_only') }}
	# test avr_only
	run: platformio ci --lib=. --board=uno --board=megaatmega1280
	env:
	PLATFORMIO_CI_SRC: examples/${{ matrix.example }}/${{ matrix.example }}.ino

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