diff --git a/README.md b/README.md
index b5d6db1..cbcb93b 100644
--- a/README.md
+++ b/README.md
@@ -55,4 +55,6 @@ The first part of the chapter was the calculation and visualization of the norma
 
 The second part of the capter involved standardizing the code so that it can process multiple objects - it was quite translating this part into Go, as a lot of C++ OOP features are missing - but finally I managed to produce this neat output:
 
-<img src="https://raytracing.github.io/images/img-1.05-normals-sphere-ground.png" alt="Second PPM image" width="480"/>
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+<img src="https://raytracing.github.io/images/img-1.05-normals-sphere-ground.png" alt="Second PPM image" width="480"/>
+
+At the end I also added an intervals struct, to further simplify the code.
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