Update README.md

Add quantized ONNX export for in-browser inference via transformers.js

Set library_name: transformers so the Hub correctly recognizes the loading library

Make our paper the primary citation (Glot500 as base-model acknowledgement); document Tigrinya weakness found during Space testing

Add venue: accepted at LM4UC @ IJCAI 2026

Add paper credit/acknowledgement (Expanding the Lexicon of Ge'ez Based African Languages)

Update README.md

Document dataset language composition and flag unverified source/provenance

Initial release: glot500-base fine-tuned for multilingual 3-class sentiment (66.2% test accuracy)

initial commit