Change the theme name in readme

[vldF]

Hello! After the last one update, I got an error: on system boot, I got error with options like: load default theme, fallback theme and do nothing. Also, at this time I saw blank screen

After hours of the bug licating, I got that you changed theme name :)
If I change it in config (in lightdm-webkit2-greeter.conf set webkit_theme = osmos, not webkit_theme = lightdm-webkit-theme-osmos), everything will be fine

[PoorPocketsMcNewHold]

I believe the difference between those two, is if you manually install it, by git cloningh the repo in the theme folder, in which, it will indeed have lightdm-webkit-theme-osmos per the repo name. When you install it via the AUR, it will be installed as osmos *(And it will also edit the lighdm-webkit configuration file accordingly)

[Warinyourself]

Thanks for your issue.
I updated the theme name in readme.
And also add hook post_upgrade in the PKGBUILD.