Fix sequence number of project news for April-May

Change-Id: I5ac9cd17ca8f0fb5b13f48c76ea936e39d0553dd
diff --git a/_posts/2020-05-29-gerrit-news-apr-may-2020.md b/_posts/2020-05-29-gerrit-news-apr-may-2020.md
index 40d423e..074d977 100644
--- a/_posts/2020-05-29-gerrit-news-apr-may-2020.md
+++ b/_posts/2020-05-29-gerrit-news-apr-may-2020.md
@@ -1,5 +1,5 @@
 ---
-title: "Gerrit Project News #10: April-May 2020"
+title: "Gerrit Project News #9: April-May 2020"
 tags: news
 keywords: news
 permalink: 2020-05-29-gerrit-news-apr-may-2020.html