Update model metadata to set pipeline tag to the new `text-ranking` (#3)

- Update model metadata to set pipeline tag to the new `text-ranking` (5a92dc08494b8fdddf7d47900b52a8ed38481053)


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

README.md

@@ -1,14 +1,15 @@
 ---
 license: mit
-pipeline_tag: sentence-similarity
+pipeline_tag: text-ranking
 tags:
 - sentence-similarity
 widget:
-- source_sentence: "information retrieval"
+- source_sentence: information retrieval
   sentences:
-  - "Information retrieval (IR) in computing and information science is the process of obtaining information system resources that are relevant to an information"
-  - "That is a very happy person"
-  example_title: "information retrieval"
+  - Information retrieval (IR) in computing and information science is the process
+    of obtaining information system resources that are relevant to an information
+  - That is a very happy person
+  example_title: information retrieval
 ---
 
 This model predicts the relevance of a query-document pair.