Add vite configuration.

README.md

@@ -110,6 +110,36 @@ const indoorequal = new IndoorEqual(map, { apiKey: 'myKey' });
 indoorequal.loadSprite('/indoorequal');
 ```
 
+**Usage with [vite](https://vitejs.dev/)**
+
+Install the
+[vite-plugin-static-copy](https://github.com/sapphi-red/vite-plugin-static-copy)
+package and add to your vite config:
+
+```javascript
+import { viteStaticCopy } from 'vite-plugin-static-copy'
+
+export default {
+  plugins: [
+    viteStaticCopy({
+      targets: [
+        {
+          src: 'node_modules/maplibre-gl-indoorequal/sprite,
+          dest: 'indoorequal'
+        }
+      ]
+    })
+  ]
+}
+```
+
+Then load the sprite:
+
+```javascript
+const indoorequal = new IndoorEqual(map, { apiKey: 'myKey' });
+indoorequal.loadSprite('/indoorequal');
+```
+
 ## API
 
 <!-- Generated by documentation.js. Update this documentation by updating the source code. -->