[in_app_purchase] Update typo in example main.dart (flutter#3073)

* Update main.dart

Documentation typo.

* Update CHANGELOG.md

* Update pubspec.yaml

Author: LewisHobden

packages/in_app_purchase/CHANGELOG.md

@@ -1,3 +1,8 @@
+
+## 0.3.4+10
+
+* Fixed typo 'verity' for 'verify'.
+
 ## 0.3.4+9
 
 * [iOS] Fixed: purchase dialog not showing always.

packages/in_app_purchase/example/lib/main.dart

@@ -225,7 +225,7 @@ class _MyAppState extends State<MyApp> {
 
     // This loading previous purchases code is just a demo. Please do not use this as it is.
     // In your app you should always verify the purchase data using the `verificationData` inside the [PurchaseDetails] object before trusting it.
-    // We recommend that you use your own server to verity the purchase data.
+    // We recommend that you use your own server to verify the purchase data.
     Map<String, PurchaseDetails> purchases =
         Map.fromEntries(_purchases.map((PurchaseDetails purchase) {
       if (purchase.pendingCompletePurchase) {

packages/in_app_purchase/pubspec.yaml

@@ -1,7 +1,7 @@
 name: in_app_purchase
 description: A Flutter plugin for in-app purchases. Exposes APIs for making in-app purchases through the App Store and Google Play.
 homepage: https://github.com/flutter/plugins/tree/master/packages/in_app_purchase
-version: 0.3.4+9
+version: 0.3.4+10
 
 dependencies:
   async: ^2.0.8