Some improvements to README texts.

Author: greenrobot-team

flutter_libs/README.md

@@ -2,8 +2,8 @@
 
 [![pub package](https://img.shields.io/pub/v/objectbox_flutter_libs.svg)](https://pub.dev/packages/objectbox_flutter_libs)
 
-This package provides native ObjectBox library as a Flutter plugin for supported platforms.
+This package provides the native ObjectBox library as a Flutter plugin for supported platforms.
 You should add this package as a dependency when using [ObjectBox](https://pub.dev/packages/objectbox) with Flutter.
 
-See package [ObjectBox](https://pub.dev/packages/objectbox) for more details and information how to use ObjectBox it. 
+See package [objectbox](https://pub.dev/packages/objectbox) for more details and information how to use it. 
 

generator/README.md

@@ -5,5 +5,5 @@
 This package provides code generation for the [ObjectBox Flutter Database](https://pub.dev/packages/objectbox).
 ObjectBox is a high-performance Flutter database for fast local Dart object persistence, fully ACID-compliant, with a highly efficient out-of-the-box Data Sync.
 
-See package [ObjectBox](https://pub.dev/packages/objectbox) for more details and information how to use it. 
+See package [objectbox](https://pub.dev/packages/objectbox) for more details and information how to use it. 
 

sync_flutter_libs/README.md

@@ -2,8 +2,9 @@
 
 [![pub package](https://img.shields.io/pub/v/objectbox_sync_flutter_libs.svg)](https://pub.dev/packages/objectbox_sync_flutter_libs)
 
-This package provides native ObjectBox library, including [Sync](https://objectbox.io/sync) client, as a Flutter plugin for supported platforms.
+This package provides the native ObjectBox library, with the [Sync](https://objectbox.io/sync) 
+client included, as a Flutter plugin for supported platforms.
 You should add this package as a dependency when using [ObjectBox](https://pub.dev/packages/objectbox) with Flutter.
 
-See package [ObjectBox](https://pub.dev/packages/objectbox) for more details and information how to use ObjectBox it. 
+See package [objectbox](https://pub.dev/packages/objectbox) for more details and information how to use it.