Add manual 2FA entry option

README.md

@@ -173,6 +173,17 @@ python src/main.py
    Enter your choice (1-5):
    ```
 
+   When choosing **Add Entry**, you can now select **Password** or **2FA (TOTP)**.
+
+### Adding a 2FA Entry
+
+1. From the main menu choose **Add Entry** and select **2FA (TOTP)**.
+2. Provide a label for the account (for example, `GitHub`).
+3. Enter the derivation index you wish to use for this 2FA code.
+4. Optionally specify the TOTP period and digit count.
+5. SeedPass will display an `otpauth://` URI and secret that you can manually
+   enter into your authenticator app.
+
 
 ### Managing Multiple Seeds