Update model metadata to set pipeline tag to the new `text-ranking` (#14)

- Update model metadata to set pipeline tag to the new `text-ranking` (04428b37e7ffd012a9dee0e74d3075bd51778b0e)


Co-authored-by: Tom Aarsen <tomaarsen@users.noreply.huggingface.co>

README.md

@@ -5,7 +5,7 @@ language:
 base_model:
 - answerdotai/ModernBERT-base
 base_model_relation: finetune
-pipeline_tag: sentence-similarity
+pipeline_tag: text-ranking
 library_name: transformers
 tags:
 - sentence-transformers