Update README.md

README.md

@@ -44,4 +44,4 @@ Data was collected with [this script](https://github.com/vincentmin/artie/blob/m
 
 ## Demo
 
-The [Artie](artie.vincentmin.com) project uses this dataset to explore art pieces together with you. Try it out [here](artie.vincentmin.com) and see the code here: [github.com/vincentmin/artie](https://github.com/vincentmin/artie).
+The [Artie](https://artie.vincentmin.com) project uses this dataset to explore art pieces together with you. Try it out [here](https://artie.vincentmin.com) and see the code here: [github.com/vincentmin/artie](https://github.com/vincentmin/artie).