Remove ` (default)` from MTEB scores caused by an MTEB bug

Add launch blog post link

Update README for int8 quantization tips

Fix usage example

Phrasing

Fix link

README phrasing

Organize readme

Add tables and fix whitespace CRLF -> LF

Fix MTEB YAML based on existing examples

Add MTEB retrieval results to model card

Update readme with usage and details

initial commit