Align index readme with highlights of 3.3 rc4 notes

Regarding the hereby added java 11 topic, remove its superfluous
sub-section title, and add a missing dot.

Change-Id: I4174a628017c9d366a7df6731efd3b1bfa19b201
diff --git a/pages/site/releases/3.3.md b/pages/site/releases/3.3.md
index 466f57d..7b70a54 100644
--- a/pages/site/releases/3.3.md
+++ b/pages/site/releases/3.3.md
@@ -12,18 +12,22 @@
 
 ## Release highlights
 
+* Java 11 by default for Gerrit
+
+* New logs timestamp format
+
+* Attention Set
+
 ## Important notes
 
 ### Default support for Java 11
 
 The java language level is now set to Java 11 by default for Gerrit.
 
-#### Related changes
-
 * [Issue 13494](https://bugs.chromium.org/p/gerrit/issues/detail?id=13494);
   Generate a Java 11 Eclipse project by default
 
-* Update dev-{eclipse,intellij} development for Java 11
+* Update dev-{eclipse,intellij} development for Java 11.
 
 ### Schema changes
 
diff --git a/pages/site/releases/README.md b/pages/site/releases/README.md
index 2098b9f..58f58e5 100644
--- a/pages/site/releases/README.md
+++ b/pages/site/releases/README.md
@@ -20,6 +20,8 @@
 
 ## 3.3.0 (in development)
 
+* Java 11 by default for Gerrit
+
 * New logs timestamp format
 
 * Attention Set