Update docs/index.asciidoc

Co-authored-by: Karen Metts <[email protected]>

docs/index.asciidoc

@@ -232,9 +232,9 @@ Refer to <<plugins-{type}s-{plugin}-ecs_metadata,ECS mapping>> for detailed info
   * Default value is 1 executor thread per CPU core
 
 The number of threads to be used to process incoming beats requests.
-By default Beats input will create a number of threads equals to 2*CPU cores to handle incoming connections,
-reading from the established sockets and execute most of the tasks related to network connection managements, 
-except the parsing of Lumberjack protocol that's offloaded to a dedicated thread pool.
+By default the Beats input creates a number of threads equal to 2*CPU cores.
+These threads handle incoming connections, reading from established sockets, and executing most of the tasks related to network connection management. 
+Parsing the Lumberjack protocol is offloaded to a dedicated thread pool.
 
 Generally you don't need to touch this setting.
 In case you are sending very large events and observing "OutOfDirectMemory" exceptions,
@@ -374,4 +374,3 @@ The minimum TLS version allowed for the encrypted connections. The value must be
 include::{include_path}/{type}.asciidoc[]
 
 :default_codec!:
-