doc: Add instructions for flash recovery technique
authorKeith Packard <keithp@keithp.com>
Mon, 16 Jun 2014 18:02:49 +0000 (11:02 -0700)
committerKeith Packard <keithp@keithp.com>
Mon, 16 Jun 2014 18:02:49 +0000 (11:02 -0700)
The flash recovery section explained which pins to connect, but lacked
explicit instructions on how to make it work.


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