Fix grammar in the pre-filtering section (#312)

Author: RayOffiah

antora.yml

@@ -9,6 +9,6 @@ ext:
     HEAD:
       sources:
         docs-server:
-          branches: release/7.6
+          branches: [release/7.6]
       override:
         startPage: server:introduction:intro.adoc

modules/vector-search/pages/pre-filtering-vector-search.adoc

@@ -8,13 +8,10 @@
 
 == About Pre-filtering
 
-Using pre-filtering as part of your vector search offers two key advantages:
+The Search Service supports pre-filtering on Vector Search queries. 
+Pre-filtering allows you to execute vector searches over a subset of the vector index, 
+via the means of a filter request that qualifies the subset.
 
-. *Enhanced precision and relevance:*
-Narrow your search results based on specific criteria, such as organization, date/time ranges, or geospatial locations.
-
-. *Performance optimization:*
-Reduce the search space before executing queries to improve query execution time and reduce computational overhead.
 
 == Prerequisites