diff --git a/hw3/commands b/hw3/commands
index fab2f17..6991c04 100644
--- a/hw3/commands
+++ b/hw3/commands
@@ -1,3 +1,5 @@
+# https://rpubs.com/ppaquay/65560
+
 library(ISLR)
 library(MASS)
 library(class)