mention ESM loading

readme.md

@@ -42,6 +42,10 @@ lilconfigSync(
  */
 ```
 
+## ESM
+
+ESM configs can be loaded with **async API only**. Specifically `js` files in projects with `"type": "module"` in `package.json` or `mjs` files.
+
 ## Difference to `cosmiconfig`
 Lilconfig does not intend to be 100% compatible with `cosmiconfig` but tries to mimic it where possible. The key difference is **no** support for yaml files out of the box(`lilconfig` attempts to parse files with no extension as JSON instead of YAML). You can still add the support for YAML files by providing a loader, see an [example](#yaml-loader) below.
 
@@ -87,29 +91,6 @@ lilconfig('myapp', options)
     });
 ```
 
-### ESM loader
-
-Lilconfig v2 does not support ESM modules out of the box. However, you can support it with a custom a loader. Note that this will only work with the async `lilconfig` function and won't work with the sync `lilconfigSync`.
-
-```js
-import {lilconfig} from 'lilconfig';
-
-const loadEsm = filepath => import(filepath);
-
-lilconfig('myapp', {
-    loaders: {
-        '.js': loadEsm,
-        '.mjs': loadEsm,
-    }
-})
-    .search()
-    .then(result => {
-        result // {config, filepath}
-
-        result.config.default // if config uses `export default`
-    });
-```
-
 ## Version correlation
 
 - lilconig v1 → cosmiconfig v6