FAQ `zii` code broken

Update:

```
function zii() {
    local dir
    dir=$(_zlua -l "$@" | fzf --nth 2.. --reverse --inline-info --tac +s -e --height 35%)
    dir=$(sed -E 's/^[[:digit:]]+[[:blank:]]+([[:print:]]+.*)$/\1/' <<< "$dir")  # Strip <number><whitespace>
    builtin cd "$dir" || return 1
}
```