diff --git a/README.md b/README.md
index c241928..0b0bb49 100644
--- a/README.md
+++ b/README.md
@@ -2,19 +2,58 @@
 
 Provides native Apple CoreBluetooth integration for use with Unity.  
 CoreBluetoothForUnity provides an interface that closely mirrors the native CoreBluetooth API.  
+
 If you are familiar with CoreBluetooth, you will find it easy to work with this plugin.
 
 ## Installation
 
-WIP
+Scoped Registry
+
+- Name: `Teach310`
+- URL: `https://registry.npmjs.com`
+- Scope: `com.teach310`
+
+## Sample
+
+You can download samples from Package Manager.
+
+#### Light Control
+
+|Central|Peripheral|
+|:--:|:--:|
+|<img width="448" alt="lightcontrol_central" src="https://github.com/teach310/CoreBluetoothForUnity/assets/16421323/388281ef-eadd-4433-be35-5ba446f9a34c">|![output](https://github.com/teach310/CoreBluetoothForUnity/assets/16421323/ebbc6bc9-59a3-465e-a2f8-0d6aafab0f20)|
+
 
-## Usage
+#### Button Information
 
-WIP
+|Central|Peripheral|
+|:--:|:--:|
+|![mov_button_information](https://github.com/teach310/CoreBluetoothForUnity/assets/16421323/8b119fda-73c0-44d8-aa53-7690526f88cf)|<img width="660" alt="button_information_peripheral" src="https://github.com/teach310/CoreBluetoothForUnity/assets/16421323/00fb797a-28e2-4337-9846-fae393941f65">|
+
+## How to release
+
+If you create a new instance like CBCentralManager, CBMutableService with using "new" keyword,
+you must call Dispose() method when you don't need it anymore.
+
+```csharp
+CBCentralManager _centralManager;
+
+...
+
+void OnDestroy()
+{
+    if (_centralManager != null)
+    {
+        _centralManager.Dispose();
+        _centralManager = null;
+    }
+}
+```
 
 ## Feature Requests
 
-This plugin isn't support all of CoreBluetooth features yet.  
+This plugin isn't support all of CoreBluetooth features yet.
+
 If you want to add some features, please create an issue or pull request.
 
 ## License