Update model metadata to set pipeline tag to the new `text-ranking` (#2)

- Update model metadata to set pipeline tag to the new `text-ranking` (d572835536d41ab30093d02f1b8d28c1533a67be)


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

README.md

@@ -5,5 +5,5 @@ datasets:
 language:
 - en
 library_name: transformers
-pipeline_tag: sentence-similarity
----
+pipeline_tag: text-ranking
+---