diff --git a/README.md b/README.md
new file mode 100644
index 0000000..2ece000
--- /dev/null
+++ b/README.md
@@ -0,0 +1,26 @@
+## 📦 Firefly APK Modifier Tool
+
+### 🔧 Features
+
+This tool allows you to modify an Android APK file with the following functionalities:
+
+1. **APK Selection & Extraction (Tab 1)**
+
+   * Select your APK file.
+   * The tool will automatically extract its contents.
+   * Once extraction is complete, you can proceed to Tab 2 and Tab 3 for further modifications.
+
+2. **Modify APK Icon and App Name (Tab 2)**
+
+   * Change the APK icon.
+   * Edit the app's display name (`app_name`).
+
+3. **Change Origin Settings (Tab 3)**
+
+   * Modify the origin domain and port used by the app.
+
+4. **Repack the APK (Back to Tab 1)**
+
+   * After all modifications are done, return to **Tab 1** and click **"Compress APK"** to rebuild the APK file.
+
+---
diff --git a/sr_apk_tool.py b/sr_apk_tool.py
index 461ab2a..0d09ada 100644
--- a/sr_apk_tool.py
+++ b/sr_apk_tool.py
@@ -11,7 +11,7 @@ class ApkIconChanger:
         ctk.set_default_color_theme("green")
         
         self.root = ctk.CTk()
-        self.root.title("SR APK Tool")
+        self.root.title("Firefly APK Tool")
         self.root.geometry("800x600")
         
         # Thêm logo