Update Ex1

ex1/README.md

@@ -70,7 +70,7 @@ The resulting renderview should look like the following:
 
 <img src="sol_task_3.jpg" width="600">.
 
-**Summary of Tasks:** Create a contour filter and connect it to the previous filters and following mappers. Extract 20 isolines between 0.4 and 0.5. Save your submission code as `task3.py`. What problem could arise if you want to approximate the isovalue?
+**Summary of Tasks:** Create a contour filter and connect it to the previous filters and following mappers. Extract 20 isolines between 0.4 and 0.5. Save your submission code as `task3.py`.
 
 ## Task 4: Export your results (2P)