diff --git a/README.md b/README.md
index e8ed43f5..8b78891e 100644
--- a/README.md
+++ b/README.md
@@ -253,14 +253,16 @@ In the package `readme.md` file, please specify the supported SDK:
 
 or
 
-![SDK: Dart](https://img.shields.io/badge/SDK-Dart-blue?style=flat-square)
+![SDK: Flutter](https://img.shields.io/badge/SDK-Flutter-blue?style=flat-square)
 
 ```markdown
 
-![SDK: Dart](https://img.shields.io/badge/SDK-Dart-blue?style=flat-square)
+![SDK: Flutter](https://img.shields.io/badge/SDK-Flutter-blue?style=flat-square)
 
 ```
 
+> Some packages requires Flutter, so please specify it.
+
 ---
 
 ## Usage
diff --git a/packages/wyatt_analysis/README.md b/packages/wyatt_analysis/README.md
index 28b5244d..95d85e02 100644
--- a/packages/wyatt_analysis/README.md
+++ b/packages/wyatt_analysis/README.md
@@ -20,7 +20,7 @@
 
 ![SDK: Dart & Flutter](https://img.shields.io/badge/SDK-Dart%20%7C%20Flutter-blue?style=flat-square)
 
-This package provides lint rules for Dart and Flutter which are used at [Wyatt](https://wyattapp.io) and [Wyatt Studio](https://wyatt-studio.fr). For more information, see the complete list of options in **lib/analysis_options.2.4.1.yaml**.
+This package provides lint rules for Dart and Flutter which are used at  [Wyatt Studio](https://wyatt-studio.fr). For more information, see the complete list of options in **lib/analysis_options.2.4.1.yaml**.
 
 **Note**: This package was heavily inspired by [pedantic](https://github.com/dart-lang/pedantic), [Very Good Analysis](https://github.com/VeryGoodOpenSource/very_good_analysis) and the official [flutter_lints](https://pub.dev/packages/flutter_lints).
 
diff --git a/packages/wyatt_architecture/README.md b/packages/wyatt_architecture/README.md
index 263ab0e2..e077fbec 100644
--- a/packages/wyatt_architecture/README.md
+++ b/packages/wyatt_architecture/README.md
@@ -16,11 +16,11 @@
  * along with this program. If not, see <https://www.gnu.org/licenses/>.
 -->
 
-# Flutter - Wyatt Architecture
+# Wyatt Architecture
 
 <p align="left">
   <a href="https://git.wyatt-studio.fr/Wyatt-FOSS/wyatt-packages/src/branch/master/packages/wyatt_analysis"><img src="https://img.shields.io/badge/Style-Wyatt%20Analysis-blue.svg?style=flat-square" alt="Style: Wyatt Analysis" /></a>
-  <img src="https://img.shields.io/badge/SDK-Flutter-blue?style=flat-square" alt="SDK: Flutter" />
+  <img src="https://img.shields.io/badge/SDK-Dart%20%7C%20Flutter-blue?style=flat-square" alt="SDK: Dart & Flutter" />
 </p>
 
 The Wyatt Architecture for Flutter. Contains useful classes to help you to create a clean architecture following the Wyatt Architecture. (core, data, domain, presentation).
diff --git a/packages/wyatt_type_utils/README.md b/packages/wyatt_type_utils/README.md
index 98034973..b36d5c1f 100644
--- a/packages/wyatt_type_utils/README.md
+++ b/packages/wyatt_type_utils/README.md
@@ -16,7 +16,7 @@
  * along with this program. If not, see <https://www.gnu.org/licenses/>.
 -->
 
-# Dart - Wyatt Type Utils
+# Wyatt Type Utils
 
 <p align="left">
   <a href="https://git.wyatt-studio.fr/Wyatt-FOSS/wyatt-packages/src/branch/master/packages/wyatt_analysis"><img src="https://img.shields.io/badge/Style-Wyatt%20Analysis-blue.svg?style=flat-square" alt="Style: Wyatt Analysis" /></a>
@@ -142,3 +142,11 @@ The date formatter works with `String` formatter:
 final DateTime date = DateTime(1999, 6, 30);
 print(date.format([dd, '/', mm, '/', yy])); // prints '30/06/99'
 ```
+
+Allow comparison between nullable numbers:
+
+```dart
+final int? a = 10;
+final int? b = 20;
+print(a < b); // prints 'true'
+```
diff --git a/packages/wyatt_type_utils/lib/src/src.dart b/packages/wyatt_type_utils/lib/src/src.dart
index 34d55694..c1d65c3c 100644
--- a/packages/wyatt_type_utils/lib/src/src.dart
+++ b/packages/wyatt_type_utils/lib/src/src.dart
@@ -15,9 +15,5 @@
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 export 'either/either_base.dart';
-export 'extensions/date_time_extension.dart';
-export 'extensions/encoding.dart';
-export 'extensions/iterable_extension.dart';
-export 'extensions/object_extension.dart';
-export 'extensions/string_extension.dart';
+export 'extensions/extensions.dart';
 export 'pair/pair.dart';