Update 3.3 release notes with rc5 updates since rc4

Bug: Issue 13625
Change-Id: I95573d2d76ae2c73b3a05b7bcaa04d978afdde83
diff --git a/pages/site/releases/3.3.md b/pages/site/releases/3.3.md
index 7b70a54..3e4807d 100644
--- a/pages/site/releases/3.3.md
+++ b/pages/site/releases/3.3.md
@@ -1,14 +1,14 @@
 ---
-title: "Gerrit 3.3.0-rc4 release (in development)"
+title: "Gerrit 3.3.0-rc5 release (in development)"
 permalink: 3.3.html
 hide_sidebar: true
 hide_navtoggle: true
 toc: true
 ---
 
-Download: **[3.3.0-rc4](https://gerrit-releases.storage.googleapis.com/gerrit-3.3.0-rc4.war)**
+Download: **[3.3.0-rc5](https://gerrit-releases.storage.googleapis.com/gerrit-3.3.0-rc5.war)**
 
-Documentation: **[3.3.0-rc4](https://gerrit-documentation.storage.googleapis.com/Documentation/3.3.0/index.html)**
+Documentation: **[3.3.0-rc5](https://gerrit-documentation.storage.googleapis.com/Documentation/3.3.0/index.html)**
 
 ## Release highlights
 
@@ -67,7 +67,7 @@
   currently expected to act on the change. Both on the dashboard and on the
   change page, this is expressed by an arrow icon before the user name.
 
-  Disabled by default, enable by setting [change.enableAttentionSet](http://gerrit-documentation.storage.googleapis.com/Documentation/3.3.0/config-gerrit.html#change.enableAttentionSet)
+  Enabled by default.
 
 ### REST API changes
 
@@ -255,6 +255,9 @@
 
 * Clarify documentation about parent project access right
 
+* Document [jgit options respected by gerrit gc](https://gerrit-documentation.storage.googleapis.com/Documentation/3.3.0/config-gerrit.html#gc);
+  [receive](https://gerrit-documentation.storage.googleapis.com/Documentation/3.3.0/config-gerrit.html#jgit-receive)
+
 ## JGit changes
 
 * [Issue 13481](https://bugs.chromium.org/p/gerrit/issues/detail?id=13481);