update instruction for installation

Author: hp77-creator

INSTALL.md

@@ -0,0 +1,50 @@
+# Installation Guide
+
+## For Users
+
+### Installing from DMG
+1. Download the ClipboardManager DMG file
+2. Double-click the DMG file to mount it
+3. Drag the ClipboardManager app to your Applications folder
+4. Since the app isn't signed with an Apple Developer ID, you'll need to:
+   - Right-click the app and select "Open" the first time
+   - Click "Open" in the security dialog that appears
+   - Or go to System Preferences > Security & Privacy and click "Open Anyway"
+
+## For Developers
+
+### Creating a Release
+
+1. Archive the app in Xcode:
+   - Select Product > Archive
+   - Once archived, copy the app to the releases folder with appropriate version
+
+2. Create DMG for distribution:
+   ```bash
+   # Install create-dmg if not already installed
+   brew install create-dmg
+
+   # Create DMG file
+   create-dmg \
+     --volname "ClipboardManager" \
+     --window-pos 200 120 \
+     --window-size 800 400 \
+     --icon-size 100 \
+     --icon "ClipboardManager.app" 200 190 \
+     --app-drop-link 600 185 \
+     "ClipboardManager-[VERSION].dmg" \
+     "releases/ClipboardManager.v.[VERSION]/ClipboardManager.app"
+   ```
+   Replace [VERSION] with the actual version number (e.g., 1.2)
+
+### Notes
+- The DMG creation process will automatically:
+  - Create a window with custom positioning
+  - Add an Applications folder shortcut for easy installation
+  - Set appropriate icon sizes and positions
+  - Compress the final DMG file
+
+### Future Improvements
+- Code signing with Apple Developer ID
+- Notarization for improved security
+- Automatic update mechanism

README.md

@@ -53,12 +53,14 @@ The application is built with a hybrid architecture:
 - macOS 12.0 or later
 - [Download the latest release](https://github.com/yourusername/clipboard-manager/releases)
 
-### Setup
-1. Download and extract the latest release
-2. Move ClipboardManager.app to your Applications folder
+### Quick Setup
+1. Download and mount the DMG file
+2. Drag ClipboardManager.app to your Applications folder
 3. Launch the app - it will appear in your menu bar
 4. Grant necessary permissions when prompted
 
+For detailed installation instructions and developer guide for creating releases, see [INSTALL.md](INSTALL.md).
+
 ## Development
 
 ### Prerequisites