Merge branch 'JohnMcGuire-master-patch-28290' into 'master'

Faster Advanced Searching update

See merge request gitlab-org/gitlab!49389

doc/user/search/advanced_global_search.md

@@ -43,11 +43,7 @@ The Advanced Search can be useful in various scenarios.
 
 ### Faster searches
 
-If you are dealing with huge amount of data and want to keep GitLab's search
-fast, Advanced Search will help you achieve that.
-
-NOTE:
-Between versions 12.10 and 13.4, Advanced Search response times have improved by 80%.
+Advanced Search is based on Elasticsearch, which is a purpose built full text search engine that can be horizontally scaled so that it can provide search results in 1-2 seconds in most cases.  
 
 ### Promote innersourcing