Update tooling-config-visualization.md (#362)

pages/docs/tooling/tooling-config-visualization.md

@@ -70,10 +70,10 @@ Alternatively, you can generate [a DOT graph](https://graphviz.org/doc/info/lang
 2. Use `dot -Tpdf -O config.dot` to layout the graph in `config.dot`, generating a `config.pdf`.
   This program is part of graphviz and there are many more output formats possible.
 
-These commands support piping, so you can also execute:
+Combine the two commands with a pipe to generate, for example, a PDF file (PNG/SVG are also possible):
 
 ```bash
-cat precice-config.xml | precice-config-visualizer | dot -Tpdf > config.pdf
+precice-config-visualizer precice-config.xml | dot -Tpdf > graph.pdf
 ```
 
 {% tip %}