[DOCS] Omit link to logging config changes (#2033)

Author: lcawl

docs/en/install-upgrade/upgrading-kibana.asciidoc

@@ -47,4 +47,5 @@ IMPORTANT: If you use {monitor-features}, you must re-use the data directory whe
 . Start {kib}.
 
 IMPORTANT: {kib} has a new logging system in 8.0 and the log formats have changed. 
-For additional information, see {kibana-ref}/_upgrading_multiple_kibana_instances.html#logging-config-changes[configuring logging].
+
+//For additional information, see {kibana-ref}/_upgrading_multiple_kibana_instances.html#logging-config-changes[configuring logging].