2.16: Change 'In development' to 'Release candidate'

Change-Id: I9dee18c0e737e98274b9524fa7fc71082e161d1a
diff --git a/pages/site/releases/README.md b/pages/site/releases/README.md
index 4b6decd..ba0259d 100644
--- a/pages/site/releases/README.md
+++ b/pages/site/releases/README.md
@@ -26,7 +26,7 @@
 
 [Release notes for Gerrit 3.0](/3.0.md)
 
-## 2.16 *(In development)*
+## 2.16 *(Release candidate)*
 
 * GWT UI is deprecated.