Add place holder for 3.3 release notes

Change-Id: Ie08b9b6b22e2a138c4565f260e890c89d5e0e28f
diff --git a/pages/site/releases/3.3.md b/pages/site/releases/3.3.md
new file mode 100644
index 0000000..3be32f6
--- /dev/null
+++ b/pages/site/releases/3.3.md
@@ -0,0 +1,19 @@
+---
+title: "Gerrit 3.3.0 Release (in development)"
+permalink: 3.3.html
+hide_sidebar: true
+hide_navtoggle: true
+toc: true
+---
+
+## Release Highlights
+
+## Important Notes
+
+### Schema Changes
+
+### Breaking Changes
+
+## New Features
+
+## Dependency Updates
diff --git a/pages/site/releases/README.md b/pages/site/releases/README.md
index 9a8ff83..a9bed9d 100644
--- a/pages/site/releases/README.md
+++ b/pages/site/releases/README.md
@@ -18,6 +18,10 @@
 Latest release: **[3.1.4](/3.1.html)**. The support status of all recent Gerrit versions is
 [summarized here](https://www.gerritcodereview.com/support.html#supported-versions).
 
+## 3.3.0 (in development)
+
+[Release notes for Gerrit 3.3.0](/3.3.html)
+
 ## 3.2.0 (in development)
 
 * Polymer 3