added further packages

docs/setup.rst

@@ -54,4 +54,24 @@ Install the tutorial
     git clone https://git.scc.kit.edu/jk7683/gridka-school-fireworks
     cd gridka-school-fireworks
     export PYTHONPATH=$PWD/lib:$PYTHONPATH
-    export PATH=$PWD/bin:$PATH
\ No newline at end of file
+    export PATH=$PWD/bin:$PATH
+
+Further packages
+----------------
+
+In order to visualize the workflows graphically two packages must be installed::
+
+    sudo apt-get install graphviz evince
+
+The packages ImageMagick and Eye of GNOME (eog) are necessary for Exercise 3::
+
+    sudo apt-get install imagemagick eog
+
+If editors like ``vi`` or ``nano`` are not preferred, more advanced editors may
+be installed, e.g.::
+
+    sudo apt-get install gedit emacs
+
+For the web GUI of lpad a web browser must be installed, e.g.::
+
+    sudo apt-get install firefox