Unity Documentation offline

I know you have gotten 15 milion of these questions, but i am going to my dads cabin for a week and i dont want to stop working on the project. there is no internett, and i know that the documentation is available offline. but it is HTML. and for some reason i cant access it offline. please help. i need the Script refrence. without it i cant do any work

Help → Scripting Reference

or

Help → Unity Manual

The offline documentation download url resides in the offline documentation page.Like this :

In any version of Unity ,there exists the hierarchy :Unity Manual → Unity User Manual (x.x)->offline documentation.