doc: add changelogs for console

PR-URL: #11489
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Italo A. Casas <me@italoacasas.com>

Author: addaleax

doc/api/console.md

@@ -236,6 +236,11 @@ milliseconds to `stdout`. Timer durations are accurate to the sub-millisecond.
 ### console.timeEnd(label)
 <!-- YAML
 added: v0.1.104
+changes:
+  - version: v6.0.0
+    pr-url: https://github.com/nodejs/node/pull/5901
+    description: This method no longer supports multiple calls that don’t map
+                 to individual `console.time()` calls; see below for details.
 -->
 
 Stops a timer that was previously started by calling [`console.time()`][] and