Accuracy + docs pass ahead of launch.
- Screensaver wording no longer tells you to put photos on a USB-C drive (those don't reliably mount on the Portal); it points you at the device's own storage, with SD/USB noted only where a model supports one.
- README refreshed: the redesigned App Store, Portal TV remote support, the presence-aware photo frame, and an honest Limitations list — no Google Play Services, the bootloader can't be unlocked (so no root), and USB thumb drives don't mount.
No functional change to the launcher, store, or installer. Existing installs update in place.