made readme more specific

Author: gertingold

README.md

@@ -3,8 +3,10 @@
 
 This repository contains material for an introductory tutorial on NumPy at EuroSciPy 2016.
 
-The following files are useful during the tutorial:
+The Jupyter notebook is useful for doing the exercises during the tutorial:
+
+ * [Jupyter Notebook](https://raw.githubusercontent.com/gertingold/euroscipy16-numpy-tutorial/master/numpy-tutorial-exercises.ipynb)
+
+The slided for the tutorial can be found here:
 
  * [Presentation (PDF)](https://raw.githubusercontent.com/gertingold/euroscipy16-numpy-tutorial/master/presentation.pdf)
- * [Jupyter
-   Notebook](https://raw.githubusercontent.com/gertingold/euroscipy16-numpy-tutorial/master/numpy-tutorial-exercises.ipynb)