Update CHANGELOG.md

Author: imdhemy

.github/CHANGELOG.md

@@ -32,9 +32,9 @@ It's a pre-release. We are creating new bugs to fix.
 
 ## Version 1.x
 
-This version is a long-term support release, and it's a complete rewrite of the package. There are many breaking
-changes which are not backwards compatible. You can still using the pre-release version `0.x` for a while until an
+This version is a long-term support release and a complete rewrite of the package. There are many breaking
+changes that are not backward compatible. You can still use the pre-release version `0.x` for a while until an
 upgrade to `1.x` is available. It will be available on the [documentation site](https://imdhemy.com/laravel-iap-docs/).
 
-This version supports receipt validation, server notifications and mocking receipts 🎉. The next versions will
+This version supports receipt validation, server notifications, and mocking receipts 🎉. The next versions will
 support App Store notifications v.2.