updated readme

README.md

@@ -45,7 +45,9 @@ Whether you are a Linux, Mac, or Windows user, we suggest that you use the Anaco
  
  4. Now, install Ketos and Jupyter Notebook as described below.
  
- 5. Finally, test that your installation was successful by opening a Python interpreter console and importing ketos.
+ 5. Download the tutorial source code (click the button with a cloud-and-arrow symbol, and select 'zip')
+ 
+ 6. Unpack the downloaded zip file, step into the tutorial directory, and start jupyter notebook by tying 'jupyter notebook' 
  
  
 ### Installing Ketos and Jupyter Notebook