Add Kudos to David Ostrovsky for work on RBE Build/Test

Change-Id: I2c03c70bd8db97c5cfabe946d537a17081a29b53
diff --git a/pages/site/community/kudos.md b/pages/site/community/kudos.md
index c15a5b9..4ef89b2 100644
--- a/pages/site/community/kudos.md
+++ b/pages/site/community/kudos.md
@@ -36,6 +36,16 @@
 
 ---
 
+**[2021-03-03] To: David Ostrovsky**
+```
+Thanks for your latest work on the RBE Build/Test [1]. We are seeing a
+significant improvement in the Gerrit CI speed because of this.
+```
+
+[1] <https://gerrit-review.googlesource.com/c/gerrit/+/297503>
+
+From: Dhruv Srivastava (Google)
+
 **[2020-12-09] To: David Ostrovsky**
 
 ```