I have a linux box so I downloaded and untar'd the file AudreyKB_replacement.tar.gz
tar -xzf AudreyKB_replacement.tar.gz
after that I think there were 4 files but only one with the filename audrey.kbd
I backed up the original en_US_101.kbd
cd /nto/photon/keyboard/
cp en_US_101.kbd en_US_101.old
then copied the audrey.kbd to en_US_101.kbd (i have a shared drive /mnt on my linux box but get it on the audrey anyway you can and copy it over en_US_101.kbd)
cp /mnt/audrey.kbd /nto/photon/keyboard/en_US_101.kbd