Doc - commands/UNLINK

[Faboor]

The example usage of the UNLINK command at redis.io/commands/unlink is very useful, but broken:

redis> SET key1 "Hello"
"OK"
redis> SET key2 "World"
"OK"
redis> UNLINK key1 key2 key3
ERR Unknown or disabled command 'UNLINK'

I suggest keeping it this way for comedy purposes.

[livsi]

Command disabled in redis instance on backend (ajax request going to real redis instance, redis-server > 4.0)