Change url structure

[mustela]

Hello there!

It may be a silly question, but I can't seem to be find a way to change the urls from /#documentationgetting_started to /documentations/getting-started.

I've try setting global definitions like permalink: /:categories/:year/:month/:day/:title/:output_ext or per collection, per page, but nothing seems to be working.

Any way to change that?

Thanks!