Add async event handling example with mutable state

README.md

@@ -17,14 +17,20 @@ make
 Then serve locally and open in your browser:
 
 ```sh
-python3 -m http.server 9994 --directory examples/basics
+python3 -m http.server 9994 --directory examples
 ```
 
+Open `http://localhost:9994/basics/index.html` for the full example index, or go directly:
+
 | URL | What it does |
 |-----|-------------|
-| `http://localhost:9994/hello.html` | Alerts "Hei maailma!" on load |
-| `http://localhost:9994/factorial.html` | Prompts for n, displays n! |
-| `http://localhost:9994/fibonacci.html` | Prompts for n, displays fib(n) |
+| `http://localhost:9994/basics/hello.html` | Alerts "Hei maailma!" on load |
+| `http://localhost:9994/basics/factorial.html` | Prompts for n, displays n! |
+| `http://localhost:9994/basics/fibonacci.html` | Prompts for n, displays fib(n) |
+| `http://localhost:9994/data-structures/lista.html` | List sorted ascending and descending |
+| `http://localhost:9994/data-structures/vektori.html` | Custom class, Euclidean length of [3,4] = 5 |
+| `http://localhost:9994/strings/merkkijono.html` | String length, concat, trim, split |
+| `http://localhost:9994/async/nappi.html` | Click handlers, mutable counter |
 
 ## What is Tampio?
 
@@ -46,10 +52,10 @@ See [`docs/cheatsheet.md`](docs/cheatsheet.md) for a map of Finnish grammatical
 | Directory | Contents |
 |-----------|----------|
 | `examples/basics/` | Hello world, factorial, Fibonacci |
-| `examples/data-structures/` | Lists, maps |
-| `examples/strings/` | String manipulation |
-| `examples/async/` | Promise / async usage |
-| `examples/program/` | A small complete program |
+| `examples/data-structures/` | Built-in list operations, custom class |
+| `examples/strings/` | String length, concat, trim, split |
+| `examples/async/` | DOM click handlers, mutable state |
+| `examples/program/` | A small complete program (coming soon) |
 
 ## Local Setup (without Docker)