mdBook: update to 0.0.27.
mdBook: update to 0.0.27.

Closes #9861.

Signed-off-by: Enno Boland <00f63b104cc192f7f01eceab27b343d9965c9f26@voidlinux.eu>

floGik/void-packages,floGik/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,coredumb/void-packages,coredumb/void-packages,necrophcodr/void-packages,coredumb/void-packages,floGik/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,coredumb/void-packages,NeoChontrix/void-packages,coredumb/void-packages,coredumb/void-packages,floGik/void-packages,NeoChontrix/void-packages,floGik/void-packages,floGik/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,necrophcodr/void-packages