updated first model run

Author: MarkMelotto

book/content/first_model_run.md

@@ -11,8 +11,9 @@ Below you will find a short overview of the content of this part.
 
 ## Interface
 
+**First** you need to get familiar with the interface of eWaterCycle.
 The eWaterCycle interface is a Jupyter Hub environment, which means you can run Jupyter notebooks in your browser.
-And the heavy computations are done at a super computer, so you do not need a powerful computer to run the models.
+And the heavy computations are done at a cloud/super computer, so you do not need a powerful computer to run the models.
 This super computer is hosted by SURF, the Dutch national supercomputer provider.
 So the jupyter hub sends the requests to the super computer, which runs the models and sends the results back to your browser.
 
@@ -21,6 +22,7 @@ You also need basic knowledge of Python to be able to use eWaterCycle.
 
 ## Running an HBV Model
 
+We will start with running a lumped bucket hydrological model: HBV with eWaterCycle.
 Here we will pick a catchment and run an HBV model with forcing data.
 To show you how eWaterCycle works in practice.
 This is a simple example, but it will give you an idea of how to use eWaterCycle.