diff --git a/2019/2019-09-09_testCourseAdv/slides/chPickPresentation1.md b/2019/2019-09-09_testCourseAdv/slides/chPickPresentation1.md
index d3b3549b06de0951b6e8af50f9aa9c72bfd2f6e8..a90f91857ff9688d505c7e3c97b126e9393198bc 100644
--- a/2019/2019-09-09_testCourseAdv/slides/chPickPresentation1.md
+++ b/2019/2019-09-09_testCourseAdv/slides/chPickPresentation1.md
@@ -5,8 +5,12 @@
 $ echo "This is the start of a commit chain" > reference.txt
 ```
 
-* Create two files in the develop branch 
+* Create and commit two files in the develop branch 
 ```bash
 $ echo "This is a commit to keep" > keep.txt
+$ git add keep.txt
+$ git commit origin develop
 $ echo "Ignore this commit" > ignore.txt
+$ git add ignore.txt
+$ git commit origin develop
 ```
\ No newline at end of file