docs(web): add instructions for Vite

lib/binding_web/README.md

@@ -27,7 +27,22 @@ const Parser = require('web-tree-sitter');
 Parser.init().then(() => { /* the library is ready */ });
 ```
 
-You can use this module with [deno](https://deno.land/):
+or Vite:
+
+```js
+import Parser from 'web-tree-sitter';
+Parser.init().then(() => { /* the library is ready */ });
+```
+
+With Vite, you also need to make sure your server provides the `tree-sitter.wasm`
+file to your `public` directory. You can do this automatically with a `postinstall`
+[script](https://docs.npmjs.com/cli/v10/using-npm/scripts) in your `package.json`:
+
+```js
+"postinstall": "cp node_modules/web-tree-sitter/tree-sitter.wasm public"
+```
+
+You can also use this module with [deno](https://deno.land/):
 
 ```js
 import Parser from "npm:web-tree-sitter";