docs: link browser demo

README.md

@@ -361,6 +361,8 @@ pretraining phase, a corpus deliberately spent on depth instead of breadth.
 
 ## Torch-free inference (C engine)
 
+**Try it in your browser: [nikshepsvn.com/thimble](https://nikshepsvn.com/thimble/)** — the engine compiled to WebAssembly, running this checkpoint client-side.
+
 The repo ships [cengine/](https://github.com/nikshepsvn/thimble/tree/master/cengine),
 the full decoder — tokenizer, trunk, grammar walk, name head — in one
 dependency-free C file. 48MB int8 weights, ~20ms load, ~350ms per full request