docs: add example usage of throwOnLimitExceeded for arrayLimit

README.md

@@ -298,6 +298,18 @@ var withArrayLimit = qs.parse('a[1]=b', { arrayLimit: 0 });
 assert.deepEqual(withArrayLimit, { a: { '1': 'b' } });
 ```
 
+If you want to throw an error whenever the array limit is exceeded, set the `throwOnLimitExceeded` option to `true`. This option will generate a descriptive error if the query string exceeds a configured limit.
+```javascript
+try {
+    qs.parse('a[1]=b', { arrayLimit: 0, throwOnLimitExceeded: true });
+} catch (err) {
+    assert(err instanceof Error);
+    assert.strictEqual(err.message, 'Array limit exceeded. Only 0 array members allowed.');
+}
+```
+
+When `throwOnLimitExceeded` is set to `false` (default), **qs** will parse up to the specified `arrayLimit` and ignore the rest without throwing an error.
+
 To disable array parsing entirely, set `parseArrays` to `false`.
 
 ```javascript