add an example of how to use MicroZig without HAL #61

Job	Run time
Build Examples (espressif/esp)	43s
Build Website	19s
Dry Run Packaging	1m 5s
Build Examples (gigadevice/gd32)	43s
Check that stm32 generated code is up to date	1m 13s
Build Examples (microchip/avr)	43s
Unit Test Ports (ubuntu-latest, gigadevice/gd32)	15s
Build Examples (microchip/atsam)	43s
Unit Test Regz (ubuntu-latest)	32s
Unit Test UF2 (ubuntu-latest)	17s
Unit Test Ports (ubuntu-latest, raspberrypi/rp2xxx)	24s
Build Examples (nordic/nrf5x)	41s
Unit Test Regz (windows-latest)	1m 40s
Build Examples (nxp/lpc)	42s
Unit Test Ports (ubuntu-latest, stmicro/stm32)	23s
Unit Test UF2 (windows-latest)	1m 40s
Unit Test Regz (macos-latest)	45s
Unit Test Ports (windows-latest, gigadevice/gd32)	57s
Unit Test UF2 (macos-latest)	28s
Build Examples (stmicro/stm32)	20s
Unit Test Ports (windows-latest, raspberrypi/rp2xxx)	1m 11s
Build Examples (raspberrypi/rp2xxx)	44s
Unit Test Ports (windows-latest, stmicro/stm32)	1m 14s
Build Examples (wch/ch32v)	41s
Unit Test Ports (macos-latest, gigadevice/gd32)	22s
Unit Test Ports (macos-latest, raspberrypi/rp2xxx)	23s
Unit Test Ports (macos-latest, stmicro/stm32)	24s
	19m 32s

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