flesh out README, including more images

README.md

@@ -1,10 +1,45 @@
 # Balbuzard
 
-![photo of assembled keyboard](images/assembled.jpg)
+Balbuzard is a compact, ergonomic keyboard with 34–38 keys.
 
-Balbuzard is a 36-key keyboard with a PCB. This repository contains the [Ergogen](https://github.com/mrzealot/ergogen) configuration that generates the KiCad PCB file.
+<img src="images/0.2_smores.jpg" height="225" alt="assembled Balbuzard 0.2" />
 
-## Usage
+## How do you type on that?
+I've used Balbuzard as my main keyboard since 2019. My keymap looks like this:
+
+<img src="images/layout.png" width="450"/>
+
+_Mod 1_ and _Mod 2_ activate alternate layers of the keymap, which contain symbols, arrows, backspace, etc.
+
+## Versions
+
+### [0.2: Low-profile](https://github.com/brow/balbuzard/releases/tag/v0.2)
+
+<img src="images/0.2_brow.jpg" height="225"/>
+<img src="images/0.2_bottom.jpg" height="225"/>
+
+- 34–38 keys
+- Compatible with Choc (low-profile) switches
+- SMD diodes hidden beneath switches
+- Silkscreen on bottom
+- Tighter key spacing
+- Viewing window under microcontroller
+- Adjustments to positions of columns and thumb keys
+
+### [0.1: Classic](https://github.com/brow/balbuzard/releases/tag/v0.1)
+
+<img src="images/0.1_assembled.jpg" height="250"/>
+<img src="images/0.1_diodes.jpg" height="250"/>
+
+- 36 keys
+- Compatible with MX, Alps, and Choc (low-profile) switches
+- Through-hole diodes tucked between switches
+- Silkscreen on top
+
+
+## Using this repository
+
+This repo contains the [Ergogen](https://github.com/mrzealot/ergogen) configuration that generates the KiCad PCB file.
 
 Assuming you have [npm installed](https://www.npmjs.com/get-npm):
 
@@ -16,10 +51,4 @@ make
 
 Find the generated PCB at `output/pcbs/main.kicad_pcb`.
 
-![pcb thumbnail image](images/pcb.png)
-
-## How do you type on that?
-
-My keymap looks like this. The colors indicate which finger I use to hit each key.
-
-![example keymap](images/layout.png)
+![pcb thumbnail image](images/pcb.png)