diff --git a/02-chapter_of_course.Rmd b/02-chapter_of_course.Rmd
index dc240d2f..1b9d0969 100644
--- a/02-chapter_of_course.Rmd
+++ b/02-chapter_of_course.Rmd
@@ -153,6 +153,15 @@ Here's more words that are hidden.
 
 You should print out session info when you have code for [reproducibility purposes](https://jhudatascience.org/Reproducibility_in_Cancer_Informatics/managing-package-versions.html).
 
+
+http://aiubhesiugbaw.com
+http://aishdiugbsbguisbibsi.com
+
+
+abuisbgbwieb
+abiebfiuawebfiuaw
+abwuiebgw
+
 ```{r}
 devtools::session_info()
 ```