Document Node.js-less web-features import (#1471)

Author: ddbeck

packages/web-features/README.md

@@ -12,6 +12,16 @@ npm install web-features
 import { features, groups, snapshots } from "web-features";
 ```
 
+Or, without Node.js:
+
+```js
+import {
+  features,
+  groups,
+  snapshots,
+} from "web-features/data.json" with { type: "json" };
+```
+
 ## Rendering Baseline statuses with `web-features`
 
 If you're using `web-features` to render Baseline iconography or browser logos with support markers, then you must follow these procedures to ensure consistent usage.