DOC add readme for wasm wheel (#99)

* DOC add readme for wasm wheel

* DOC skip doctest

Author: MatthewSZhang

README.rst

@@ -92,6 +92,19 @@ Support Free-Threaded Wheels
 FastCan has support for free-threaded (also known as nogil) CPython 3.13.
 For more information about free-threaded CPython, check `how to install a free-threaded CPython <https://py-free-threading.github.io/installing_cpython/>`_.
 
+Support WASM Wheels
+-------------------
+FastCan is compiled to WebAssembly (WASM) wheels using `pyodide <https://github.com/pyodide/pyodide>`_, and they are available on the assets of GitHub releases.
+You can try it in a `REPL <https://pyodide.org/en/stable/console.html>`_ directly in a browser.
+The WASM wheels of FastCan can be installed by
+
+>>> import micropip # doctest: +SKIP
+>>> await micropip.install('URL of the wasm wheel (end with _wasm32.whl)') # doctest: +SKIP
+
+.. note::
+   Due to the Cross-Origin Resource Sharing (CORS) block in web browsers,
+   you may need `Allow CORS: Access-Control-Allow-Origin Chrome extension <https://chrome.google.com/webstore/detail/allow-cors-access-control/lhobafahddgcelffkeicbaginigeejlf>`_.
+
 
 Citation
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