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` (b0b84a020e83de131f6a75755d4059c9e1f8f32b)


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

README.md

@@ -1,14 +1,14 @@
 ---
 language:
-  - ko
-  - en
-  - zh
+- ko
+- en
+- zh
 license: mit
-pipeline_tag: feature-extraction
+pipeline_tag: text-ranking
 tags:
-  - transformers
-  - sentence-transformers
-  - text-embeddings-inference
+- transformers
+- sentence-transformers
+- text-embeddings-inference
 ---