v2.1

🚀 Version 2.1 - Improvements & Fixes

This update brings important fixes and improvements to enhance the accuracy of invoice signing and QR generation.

🔹 What's New?

• ✅ Enhanced QR Code Output – Added the signature node to the QR node in InvoiceSigner.
• 🔧 Certificate Hash Fix – Fixed raw binary encoding issue in Certificate class for more accurate hash calculation.
• 🛠 Improved XML Signature Handling – Fixed digest calculation and improved XML formatting in InvoiceSignatureBuilder.
• 🔄 Method Naming Fix – Renamed getCertificateSignature to getCertSignature in InvoiceExtension for better consistency.
• 📄 Updated Documentation – Improved README.md with clearer instructions.

This update ensures more accurate invoice signing and better QR code generation. 🚀

💡 Found an issue or have a suggestion? Feel free to contribute!