diff --git a/README.md b/README.md
index 4af0d90..ba9102a 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,8 @@ MQ135
 =====
 
 Arduino library for the MQ135
+
+More Info
+=====
+
+https://hackaday.io/project/3475-sniffing-trinket/log/12363-mq135-arduino-library