updated exercises

posts/sketching-exercises.md

@@ -17,4 +17,13 @@ The third exercise is hand interactions sketches. The sketch is hand interaction
 ### Exercise two: 
 ![Exercise Two](/images/exercise_2_Frederik.png "Exercise Two - Frederik")
 ### Exercise three: 
-![Exercise Three](/images/exercise_3_Frederik.png "Exercise Three - Frederik")
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+![Exercise Three](/images/exercise_3_Frederik.png "Exercise Three - Frederik")
+
+
+## Sigurd
+### Exercise one: 
+![Exercise One](/images/exercise_1_Sigurd.jpeg "Exercise One - Sigurd")
+### Exercise two: 
+![Exercise Two](/images/exercise_2_Sigurd.jpeg "Exercise Two - Sigurd")
+### Exercise three: 
+![Exercise Three](/images/exercise_3_Sigurd.jpeg "Exercise Three - Sigurd")
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