diff --git a/non-ros-files/Programming_Rules.md b/non-ros-files/Programming_Rules.md
index 033bed1..2d46039 100644
--- a/non-ros-files/Programming_Rules.md
+++ b/non-ros-files/Programming_Rules.md
@@ -1,2 +1,9 @@
 # Rules for programming Python in ROS2
 ## File Structure
+```
+colcon_workspace  
+    |  
+    |- build  
+    |- install  
+    |- src  
+```
\ No newline at end of file