Mention change in default behaviour of --console-log

This mentions the change introduced in I5c3dfa531a6ccd397d3ceb60defc6e83943e95f1.

Change-Id: I2ed5b333ac219ff23c31843aafe538c0632ca8e4
diff --git a/pages/site/releases/3.0.md b/pages/site/releases/3.0.md
index 6accc04..f515f3f 100644
--- a/pages/site/releases/3.0.md
+++ b/pages/site/releases/3.0.md
@@ -216,6 +216,14 @@
 
   * Elasticsearch: Support for EOL version 6.6 is discontinued.
 
+  * Logging: `--console-log`-flag of `gerrit.war daemon` respects `log.textLogging`
+    and `log.jsonLogging` options
+
+    Change in the default behaviour of the `--console-log` flag. Since
+    `log.textLogging` in the `gerrit.config` is `true` by default, using the
+    `--console-log`-flag now writes logs to the `error_log`-file in addition
+    to stderr by default. This can be avoided by setting `log.textLogging = false`.
+
 ### 3.0.12
 
 * Security Fixes