[Klonan][web] OS version requirement

[sakuro]

https://www.factorio.com/space-age/buy

>MacOS X El Capitan 10.10 or Newer.

Yosemite is 10.10 and El Capitan is 10.11.

(And since 10.12 Sierra, the OS itself is renamed to macOS, FYI)

https://www.factorio.com/buy

This still includes Windows Vista, 7 and 8 while spaca-age is only for 10 and 11, intended?

[StrangePan]

Thanks for the report! We've made the necessary corrections, and the various platforms should be updated soon.