Updated GUI, included custom markers during logging.

readme.md

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+## Windows (.exe)
+
+1. Run `Bio-Z App Windows.exe`.
+
+## macOS
+
+Additional steps are required on macOS. Otherwise, you may see a message such as
+*"This app can’t be opened because it is from an unidentified developer."*
+You can choose one of the following options:
+
+### Option 1: Use the native binary (no extension)
+
+1. Open `Bio-Z App macOS 1`.
+2. A warning will appear stating that `Bio-Z App macOS 1` cannot be opened.
+3. Go to **System Settings** → **Privacy & Security**.
+4. Scroll down and click **Open Anyway** under **Security**.
+5. Follow the onscreen instructions.
+
+### Option 2: Use the application bundle (.app)
+
+1. Open **Terminal** and navigate to this folder using `cd`.
+2. Run the following command to remove the quarantine attribute:
+
+   ```bash
+   sudo xattr -cr Bio-Z\ App\ macOS\ 2.app
+   ```
+3. Open `Bio-Z App macOS 2`.