UPDATE: Adds Web browser wasm bindings (#30)

* UPDATE: Adds Web browser wasm bindings

* FIX: install wasm-pack in the GitHub actions

bindings/wasm/README.md

@@ -0,0 +1,31 @@
+# IronCalc Web bindings
+
+This crate is used to build the web bindings for IronCalc.
+Note that it does not contain the xlsx writer and reader, only the engine.
+
+https://www.npmjs.com/package/@ironcalc/wasm?activeTab=readme
+
+## Building
+
+```bash
+make
+```
+
+## Testing
+
+Right now this is a manual process and only carries out a smoke test:
+
+1. Build the package
+2. Run `python -m http.server`
+3. In your browser open <http://0.0.0.0:8000/test.html>
+
+## Publishing
+
+Follow the commands:
+
+```bash
+wasm-pack login
+make
+cd pkg
+npm publish --access=public
+```