[DOC+] Extra code character (#7917)

👋🏼 howdy, team! 👶🏼 PR to remove a stray `\`` character which a user noted in doc feedback.

Author: stefnestor

docs/usage/examples.asciidoc

@@ -77,7 +77,7 @@ include::{doc-tests-src}/Usage/CrudExamplesTests.cs[tag=search-tweet-fluent]
 <1> The generic type argument specifies the `Tweet` class, which is used when 
 deserialising the hits from the response.
 <2> The index can be omitted if a `DefaultIndex` has been configured on 
-`ElasticsearchClientSettings``, or a specific index was configured when mapping 
+`ElasticsearchClientSettings`, or a specific index was configured when mapping 
 this type.
 <3> Execute a term query against the `user` field, searching for tweets authored 
 by the user 'stevejgordon'.
@@ -119,4 +119,4 @@ Documents can be deleted by providing the ID of the document to remove.
 [source,csharp]
 ----
 include::{doc-tests-src}/Usage/CrudExamplesTests.cs[tag=delete-tweet]
-----
+----