diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,6 +1,11 @@
 # LightPipesClock
-A digital clock display made from light pipes
 
-See full tutorial on [Instructables.com](https://www.instructables.com/Digital-Light-Pipes-Fiber-Optic-Clock/)
+## Original code
 
-[![Digital Light Pipes Clock](https://img.youtube.com/vi/2n5Elx5SJpc/0.jpg)](https://www.youtube.com/watch?v=2n5Elx5SJpc)
\ No newline at end of file
+This repository is a clone of https://github.com/terra819/LightPipesClock with my own adjustments. 
+
+For a full tutorial on the clock visit [Instructables.com](https://www.instructables.com/Digital-Light-Pipes-Fiber-Optic-Clock/)
+
+## My adjustments
+
+I mainly changed the mapping data between the ws2812b matrix and the digits. Reason: I did not take care when I assembeled my clock version and hence the existing mapping did not work...