Update README (#97271)

README.md

@@ -6,8 +6,8 @@
 
 Flutter is Google's SDK for crafting beautiful, fast user experiences for
 mobile, web, and desktop from a single codebase. Flutter works with existing
-code, is used by developers and organizations around the world, and is free
-and open source.
+code, is used by developers and organizations around the world, and is free and
+open source.
 
 ## Documentation
 
@@ -16,21 +16,29 @@ and open source.
 * [Development wiki](https://github.com/flutter/flutter/wiki)
 * [Contributing to Flutter](https://github.com/flutter/flutter/blob/master/CONTRIBUTING.md)
 
-For announcements about new releases and breaking changes, follow the
+For announcements about new releases, follow the
 [flutter-announce@googlegroups.com](https://groups.google.com/forum/#!forum/flutter-announce)
-mailing list or see the
-[breaking changes](https://flutter.dev/docs/release/breaking-changes) page.
+mailing list. Our documentation also tracks [breaking
+changes](https://flutter.dev/docs/release/breaking-changes) across releases.
 
 ## Terms of service
 
-The Flutter tool may occasionally download resources from Google servers. By downloading or using the Flutter SDK you agree to the Google Terms of Service: https://policies.google.com/terms
+The Flutter tool may occasionally download resources from Google servers. By
+downloading or using the Flutter SDK you agree to the Google Terms of Service:
+https://policies.google.com/terms
 
-For example, when installed from GitHub (as opposed to from a prepackaged archive), the Flutter tool will download the Dart SDK from Google servers immediately when first run, as it is used to execute the "flutter" tool itself. This will also occur when Flutter is upgraded (e.g. by running the "flutter upgrade" command).
+For example, when installed from GitHub (as opposed to from a prepackaged
+archive), the Flutter tool will download the Dart SDK from Google servers
+immediately when first run, as it is used to execute the `flutter` tool itself.
+This will also occur when Flutter is upgraded (e.g. by running the `flutter
+upgrade` command).
 
 ## About Flutter
 
 We think Flutter will help you create beautiful, fast apps, with a productive,
-extensible and open development model.
+extensible and open development model, whether you're targeting iOS or Android,
+web, Windows, macOS, Linux or embedding it as the UI toolkit for a platform of
+your choice.
 
 ### Beautiful user experiences
 
@@ -39,8 +47,9 @@ forced to water it down due to limitations of the underlying framework.
 Flutter's [layered architecture] gives you control over every pixel on the
 screen and its powerful compositing capabilities let you overlay and animate
 graphics, video, text, and controls without limitation. Flutter includes a full
-[set of widgets][widget catalog] that deliver pixel-perfect experiences on both
-iOS and Android.
+[set of widgets][widget catalog] that deliver pixel-perfect experiences whether
+you're building for iOS ([Cupertino]) or Android ([Material]), along with
+support for customizing or creating entirely new visual components.
 
 <p align="center"><img src="https://github.com/flutter/website/blob/main/src/assets/images/docs/homepage/reflectly-hero-600px.png?raw=true" alt="Reflectly hero image"></p>
 
@@ -64,11 +73,12 @@ and see the results instantly without restarting your app or losing its state.
 
 ### Extensible and open model
 
-Flutter works with any development tool (or none at all) but includes editor
-plug-ins for both [Visual Studio Code] and [IntelliJ / Android Studio]. Flutter
-provides [thousands of packages][Flutter packages] to speed your development,
-regardless of your target platform. And accessing other native code is easy,
-with support for both [FFI] and [platform-specific APIs][platform channels].
+Flutter works with any development tool (or none at all), and also includes
+editor plug-ins for both [Visual Studio Code] and [IntelliJ / Android Studio].
+Flutter provides [tens of thousands of packages][Flutter packages] to speed your
+development, regardless of your target platform. And accessing other native code
+is easy, with support for both [FFI] and [platform-specific APIs][platform
+channels].
 
 Flutter is a fully open-source project, and we welcome contributions.
 Information on how to get started can be found in our
@@ -83,11 +93,14 @@ Information on how to get started can be found in our
 [Twitter handle]: https://img.shields.io/twitter/follow/flutterdev.svg?style=social&label=Follow
 [Twitter badge]: https://twitter.com/intent/follow?screen_name=flutterdev
 [layered architecture]: https://flutter.dev/docs/resources/inside-flutter
+[architectural overview]: https://docs.flutter.dev/resources/architectural-overview
 [widget catalog]: https://flutter.dev/widgets/
+[Cupertino]: https://docs.flutter.dev/development/ui/widgets/cupertino
+[Material]: https://docs.flutter.dev/development/ui/widgets/material
 [Skia]: https://skia.org/
 [Dart platform]: https://dart.dev/
 [Hot reload animation]: https://github.com/flutter/website/blob/main/src/assets/images/docs/tools/android-studio/hot-reload.gif?raw=true
-[Hot reload]: https://flutter.dev/docs/development/tools/hot-reload
+[Hot reload]: https://docs.flutter.dev/development/tools/hot-reload
 [Visual Studio Code]: https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
 [IntelliJ / Android Studio]: https://plugins.jetbrains.com/plugin/9212-flutter
 [Flutter packages]: https://pub.dev/flutter