docs: add screenshot and trivia section to README

README.md

@@ -13,8 +13,6 @@ When logging in, enter:
 - **Miniflux**: `https://example.com`
 - Other compatible servers: consult your server's documentation for the Greader API endpoint
 
-This is version 3, rewritten in Rust with GTK4 and libadwaita.
-
 ## Dependencies
 
 ### Runtime
@@ -56,6 +54,16 @@ Set `PREFIX` to install elsewhere:
 sudo PREFIX=/usr ./install.sh
 ```
 
+## Trivia
+
+This is version 3 of FeedTheMonkey, rewritten in Rust with GTK4 and libadwaita.
+Version 2 was written in C++ with Qt and QML, and version 1 in PyQt — you can find
+them in the `v2` and `v1` branches of this repo.
+
+## Screenshot
+
+![FeedTheMonkey screenshot](data/screenshot.png)
+
 ## Keyboard shortcuts
 
 | Key | Action |