Update users_comments.md

AtsushiSakai · web-flow · commit 3539400c8fc9 · 2019-04-10T18:31:39.000+09:00
diff --git a/users_comments.md b/users_comments.md
@@ -178,6 +178,12 @@ Dear AtsushiSakai <br>Thank you for your contributions!
 
 --Luo
 
+---
+
+Dear AtsushiSakai, Your visualizations are awesome, and I am going to have this link bookmarked for future references. Thank you!
+
+--Srinivasa Varadhan Agaram Chakravarthy
+
 =========
 
 # Citations
