Fix link to 3.2 release notes

Change-Id: I985e1a45b3dd5c04092d057651fe63725c33edbc
diff --git a/pages/site/releases/README.md b/pages/site/releases/README.md
index 642a765..4d69385 100644
--- a/pages/site/releases/README.md
+++ b/pages/site/releases/README.md
@@ -20,7 +20,7 @@
 
 ## 3.2.0 (in development)
 
-[Release notes for Gerrit 3.2.0](/3.2.md)
+[Release notes for Gerrit 3.2.0](/3.2.html)
 
 ## 3.1.0