feat: Document Rollup native support (#42)

Author: timfish

packages/rollup/README.md

@@ -4,6 +4,24 @@
 
 Injects Debug IDs into source and sourcemaps when using Rollup.
 
+Rollup v4.25.0 and later support debug IDs natively without any plugins:
+
+`rollup.config.mjs`
+
+```ts
+export default {
+  input: "./src/main.js",
+  output: {
+    dir: "dist",
+    format: "esm",
+    sourcemap: true,
+    sourcemapDebugIds: true,
+  },
+};
+```
+
+For older versions of Rollup, you can use this plugin to inject debug IDs:
+
 `rollup.config.mjs`
 
 ```ts