Add a link at the old jtag2updi repository to the new one #18
Description
Hi Spence
On the old repository
https://github.com/SpenceKonde/jtag2updi
There is no link to the new improved solution:
https://github.com/SpenceKonde/AVR-Guidance/blob/master/UPDI/jtag2updi.md
Can you add the link?