feat: update readme

README.md

@@ -26,6 +26,21 @@ sudo nixos-rebuild switch --flake .#
 
 After that reload the shell
 
-### BluRays
+## Updating the system
 
-Download the database from [here](http://fvonline-db.bplaced.net/) and place it in `~/.config/aacs/KEYDB.cfg`
+```sh
+# in your config folder
+nix flake update
+sudo nixos-rebuild switch --flake .#
+```
+
+## Adapting the config
+
+Few not so obvious things you might wanna adjust (non-exhaustive):
+
+- The default layout is configured for my [CharaChorder 1](https://www.charachorder.com/en-de/products/charachorder-one).
+  You probably don't want that, though most you won't notice.
+- **Subpixel rendering is set up for a BGR layout.** Most likely you'll have an RGB layout.
+- Hyprland is configured with a layout that works on a 43" screen. You'll probably want to adjust that.a
+- Keybinds in Hyprland are made to work on my [CharaChorder 1](https://www.charachorder.com/en-de/products/charachorder-one).
+  They'll be horrible to use on a qwerty keyboard.