feat: move roadmap

Signed-off-by: 0xMRTT <0xMRTT@tuta.io>

README.md

@@ -146,35 +146,7 @@ Use [this guide](https://github.com/lassekongo83/adw-gtk3/blob/main/gtk4.md) to
 
 ## Roadmap
 
-This tool is currently WIP, but it already has a plenty of features and is very usable. Below is the roadmap, where all the checked features are already implemented:
-
-<details><summary>Show roadmap</summary>
-
-### <!-- GapTool Turbo 3000 -->
-
-- [x] Customize named colors, either with a color picker or with text
-- [x] Explanations for some named colors
-- [x] Partial theme preview
-- [x] Built-in presets for Adwaita and Adwaita Dark (based on default libadwaita colors)
-- [x] Apply changes to libadwaita, GTK4 (with extracted libadwaita theme) and GTK3 (with the adw-gtk3 theme) applications
-- [x] Load and create custom presets
-- [x] View adw-gtk3's support of variables
-- [x] View parsing errors
-- [x] Customize palette colors
-- [x] Add custom CSS code
-- [x] Localization support
-- [x] Normalize color variables
-- [x] Make the code more secure
-- [x] Add preset manager with option to download other users presets
-- [x] Release on Flathub
-- [x] Add plugin support. Will help integration with others tools. (WIP)
-- [ ] Full theme preview
-- [ ] Customize GNOME Shell
-- [ ] Customize GDM
-- [ ] Customize KvLibadwaita
-- [x] Customize Firefox GNOME theme
-
-</details>
+See [`ROADMAP.md`](ROADMAP.md)
 
 ## Contribute