unnecessary value of create_uuid_dir

[BakaJzon]

trafficstars

Only in Caddyfile

I mean, the default value of create_uuid_dir is false. So when users add this parameter, they must set the value to true. like this

upload ... {
    ...
    create_uuid_dir [optional: true/false]
}

[git001]

Ah got you, will adopt the doc in caddyfile.go