[DOCS] Edited intro sentence for clarity. Closes #39865 (#39866)

Author: kat257

docs/reference/query-dsl/full-text-queries.asciidoc

@@ -1,10 +1,9 @@
 [[full-text-queries]]
 == Full text queries
 
-The high-level full text queries are usually used for running full text
-queries on full text fields like the body of an email. They understand how the
-field being queried is <<analysis,analyzed>> and will apply each field's
-`analyzer` (or `search_analyzer`) to the query string before executing.
+The full text queries enable you to search <<analysis,analyzed text fields>> such as the 
+body of an email. The query string is processed using the same analyzer that was applied to 
+the field during indexing. 
 
 The queries in this group are: