Update the manual for the new voice config.
tree713f824f28457bf481200d628ed19c8a898234b1
drwxr-xr-x - apps
drwxr-xr-x - bootloader
drwxr-xr-x - docs
drwxr-xr-x - firmware
drwxr-xr-x - flash
drwxr-xr-x - fonts
drwxr-xr-x - gdb
drwxr-xr-x - manual
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drwxr-xr-x - uisimulator
drwxr-xr-x - wps