ECG-Diary

Update README.md to reflect changes in support options for the project. The previous Apple Developer registration issue is addressed, and a new Ko-fi link is provided for contributions.

Add demo image to README.md and USAGE.md for better visual representation

Update README.md to clarify app launch instructions on macOS, including steps to bypass security warnings for unsigned apps.

Update GitHub Actions workflow to use macOS 14 and correct app name in DMG and ZIP creation steps

Add initial project files including LICENSE, README, funding configuration, and GitHub Actions workflow for automated builds and releases