Docs clarification for settings

[saidbakr]

Could you please add in the documentation (project description) or a plugin hint about supposed values for the following settings screen shot:

[lowap]

I would be also interested. My project is on a remote server, I have no clue what to set up here. Can you please explain? Many thanks!
UPDATE: maybe it has to be empty, because ./yii should be in source (=base path location) folder. Maybe we have to change Base path of application only when ./yii is in a subfolder.