Thread:Extension talk:ShortUrl/the path for generating short URLs

Statement  Set $wgShortUrlTemplate to the template of the path for generating short URLs. $1 is replaced with the actual short url id.  should be explained. I have installed this the ShortUrl extension at http://mizugadro.mydns.jp/q/index.php/Special:Version but it does not work. I added line $wgShortUrlTemplate= "http://mizugadro.mydns.hp/k" at the end of the LocalSetting.php

expecting, that instead of http://mizugadro.mydns.hp/q/index.php/test

I can type simply http://mizugadro.mydns.hp/k/test

but I see, this does not work. When, where and how should I specify the desired short URL for this wiki to make it work? Should I create directory http://mizugadro.mydns.hp/k ? Should I put there some files? How to quess, which files should be placed there?

Some sentences or paragraphs seem to be missed between statements "Set $wgShortUrlTemplate to the template of the path for generating short URLs." and "$1 is replaced with the actual short url id."

Could you recover, please the missed explanation?