DOC: typo for __vec_score sortby field (#760)

Author: nekomeowww

content/develop/interact/search-and-query/advanced-concepts/vectors.md

@@ -441,7 +441,7 @@ FT.SEARCH movies "(@category:{action} ~@category:{drama})=>[KNN 10 @doc_embeddin
 Among the movies that have `drama` or `action` as a category tag, return the top 10 nearest neighbors and explicitly set the filter mode (hybrid policy) to "ad-hoc brute force" rather than it being auto-selected:
 
 ```
-FT.SEARCH movies "(@category:{drama | action})=>[KNN 10 @doc_embedding $BLOB HYBRID_POLICY ADHOC_BF]" PARAMS 2 BLOB "\x12\xa9\xf5\x6c" SORTBY __vec_scores DIALECT 4
+FT.SEARCH movies "(@category:{drama | action})=>[KNN 10 @doc_embedding $BLOB HYBRID_POLICY ADHOC_BF]" PARAMS 2 BLOB "\x12\xa9\xf5\x6c" SORTBY __vec_score DIALECT 4
 ```
 
 Among the movies that have `action` as a category tag, return the top 10 nearest neighbors and explicitly set the filter mode (hybrid policy) to "batches" and batch size 50 using a query parameter: