Update model metadata to set pipeline tag to the new `text-ranking` (#1)

- Update model metadata to set pipeline tag to the new `text-ranking` (108e547e3fedc95af50701476b1be1dad5019a4a)


Co-authored-by: Tom Aarsen <[email protected]>

README.md

@@ -6,7 +6,7 @@ datasets:
 language:
 - fr
 - en
-pipeline_tag: sentence-similarity
+pipeline_tag: text-ranking
 ---
 
 # Bloomz-560m Reranking