Update community.html.md
OnTapp website is offline now. Updated link to writeup.
Closes #460
diff --git a/docs/manual/source/demo/community.html.md b/docs/manual/source/demo/community.html.md
index e88196c..afd2bac 100644
--- a/docs/manual/source/demo/community.html.md
+++ b/docs/manual/source/demo/community.html.md
@@ -51,9 +51,7 @@
Beer recommendation app built by [Victor Leung](https://twitter.com/victorleungtw).
-URL: http://ontappapp.com/
-
-Writeup: http://victorleungtw.com/prediction-io/
+Writeup: https://medium.com/@victorleungtw/beer-recommendation-engine-using-predictionio-36488ea0c50d
## Yelpio
