tree d6d2cd65f960d7b4a496e58b31bf91b300d2d7f1
parent e997c46e6dd34e8b09d7b1740e1c3b3ff0e9d3ad
author Peter Bigot <peter.bigot@nordicsemi.no> 1599052163 -0500
committer Anas Nashif <anas.nashif@intel.com> 1599137539 -0400

i2c_shell: restore documentation on scan technique

When this code was moved from a standalone sample to an optional shell
feature the documentation on how this works and caveats was lost.  Put
it back so it can be referenced in issue explanations.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>