README.md: Fix instruction to show full zmraa patch path
README.md: Fix instruction to show full zmraa patch path

Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

intel-iot-devkit/zmraa,malikabhi05/zmraa-1,whbruce/zmraa,jontrulson/zmraa