Package documentation URL

[Vitaly Livshic]

Good day.

I publish small library for code.dlang.org. BitBucket is a 
hosting, now.

There are many ddoc commentaries inside sources. 'dub 
--build=docs' or 'dub --build=ddox' creates two types of 
documentation. But when I specify url to repository itself or to 
any of these files - 'Documentation' tab is empty.

How to make documentation right? Is there any tutorial?