v0.1.0 - Fix voltage calculation and add configurable reference

🔧 Breaking Changes

• Constructor now accepts optional vRef parameter (defaults to 10V for ±5V range)

🐛 Bug Fixes

• Fixed voltage calculation formula - was reading half the actual voltage
• Proper 2's complement handling for signed 16-bit values

✨ New Features

• Configurable reference voltage parameter
• Support for both ±5V (10V ref) and ±10V (20V ref) ranges

📚 Documentation

• Updated README with vRef parameter documentation
• Updated BasicReading example to demonstrate vRef usage

🚀 Performance

• Removed debug code from ISR for better performance

Full Changelog: v0.0.1...v0.1.0