chore: Update README.md

README.md

@@ -1,6 +1,19 @@
 # QMK Keymap for the Iris CE
 
-![](./docs/keymap_hrms.svg)
+## Layout summary
+
+Most functionality is spread across three layers:
+
+1. `Base`: Pretty basic QWERTY layer with the `GUI`, `Bspc`, `Enter`, `Spc` and `Alt` keys moved to the thumb cluster.
+2. `Navigation`: Focuses on moving around.
+   - Utilizes One Shot Modifiers on the left home row so we can easily do stuff like `Ctrl + Right`
+   - Utilizes macros for quickly selecting/extending words and lines
+   - Shortcuts for browser tab manipulation
+3. `Symbols`: My symbol layer, inspired by [sunaku's symbol layer](https://sunaku.github.io/moergo-glove80-keyboard.html#symbol-layer) and [getruer's symbol layer](https://getreuer.info/posts/keyboards/symbol-layer/index.html#my-symbol-layer)
+   - Symbols on the left hand home row are placed in a way that favors Vim usage
+   - Parentheses and brackets are grouped on the right hand
+
+We have also implemented a `function` layer as a [Tri Layer](https://docs.qmk.fm/features/tri_layer), which is used for less common keys, such as media and RGB controls, accessing the keyboard's bootloader, F-keys etc.
 
 ## How to use
 
@@ -46,8 +59,9 @@ This repository is a valid QMK external userspace as documented [here](https://d
   - Turns out this causes more trouble than it solves:
     - `Ctrl + Mouse` doesn't work
     - `Ctrl` only applies to the first key, which makes shortcuts like deleting backwards in the shell using `Ctrl+h` feel very awkward, as you have to keep pressing `Ctrl`
+- [ ] Add [X-Case](https://github.com/andrewjrae/kyria-keymap?tab=readme-ov-file#x-case)
 
-# Credits
+## Credits
 
 - [Pascal Getreuer's QMK keymap](https://github.com/getreuer/qmk-keymap/tree/main)
 - [Sunaku's "Glorious Engrammer" keymap](https://github.com/sunaku/glove80-keymaps)