Fix documentation link in 3.0.9 release notes

Change-Id: I590d222ecbc4136ad7eeaf103634d2ae9f1c1cb7
diff --git a/pages/site/releases/3.0.md b/pages/site/releases/3.0.md
index c38b806..8cd41b6 100644
--- a/pages/site/releases/3.0.md
+++ b/pages/site/releases/3.0.md
@@ -223,7 +223,7 @@
     several minutes on larger installations.
 
     Installations that still want to use this metric must explicitly enable it with the
-    [cache.enableDiskStatMetrics](http://gerrit-documentation.storage.googleapis.com/Documentation/2.16.18/config-gerrit.html#cache.enableDiskStatMetrics)
+    [cache.enableDiskStatMetrics](http://gerrit-documentation.storage.googleapis.com/Documentation/3.0.9/config-gerrit.html#cache.enableDiskStatMetrics)
     configuration option.
 
   * Plugin API: Deprecated methods related to the draft workflow and change edits are removed