Update compatibility info

Added information about the version number of SimpleMenu for which the latest release of SimUI is optimised and removed info about the ability to use the 320x240 theme on a 640x480 device (no longer possible with SimpleMenu 10.1 or newer).

README.md

@@ -16,11 +16,11 @@ The goal was to transfer ideas that make MinUI, well, "min" to a more robust pla
 One other notable example: while SimpleMenu supports multiple controls / key combinations (please read [this wiki page](https://github.com/fgl82/simplemenu/wiki/3.-Controls) to learn more or visit *Settings > Help* in the app) I simply did not find a good place to put hints for all of them so I chose only the essential ones fot the bottom bar.
 
 # Compatibility
-SimUI should work with all devices that are currently supported by SimpleMenu (original Bittboy, PocketGo and it's clones, devices running RetroFW and OpenDingux). For now, only a 320x240 version has been created but I'm also planning to release a 640x480 version. Please note that the 320x240 version will also work on devices with a 640x480 screen – you just need to put it in the `/.simplemenu/themes/640x480/` folder – but some images may look a little blurry because of them being scaled up. If you encounter any problems on your device, please let me know.
+The latest release of SimUI is optimised for SimpleMenu version 10.0 and should work with all devices that are currently supported by SimpleMenu (original Bittboy, PocketGo and it's clones, devices running RetroFW and OpenDingux). For now, only a 320x240 version has been created but I'm also planning to release a 640x480 version. ~~Please note that the 320x240 version will also work on devices with a 640x480 screen – you just need to put it in the `/.simplemenu/themes/640x480/` folder – but some images may look a little blurry because of them being scaled up.~~ *// no longer possible with SimpleMenu 10.1 or newer //* If you encounter any problems on your device, please let me know.
 
 # Installation
 1. Download the [latest release](https://github.com/dkodr/SimUI/releases/latest)
-2. Extract it to `/.simplemenu/themes/320x240/` or `/.simplemenu/themes/640x480/` (depending on your device)
+2. Extract it to `/.simplemenu/themes/320x240/`
 3. Choose the theme in SimpleMenu settings
 
 # Thumbnails
@@ -50,8 +50,3 @@ R = 305
 ```
 
 Otherwise some keys won't be mapped correctly.
-
-# Roadmap
-- [X] 320x240 version
-- [ ] 640x480 version
-- [ ] Mini, Midi and Maxi variants with different font sizes and text density (for different screen **sizes**)