Ausarbeitung: org: improve contents shared with presentation.

* Highlight words highlighted in presentation.
* Define \stereo makro for stereotype representation.
* Last edit: reformulate sentence to be more understandable.
Ausarbeitung: org: add first 2 figures from presentation.
Ausarbeitung: org: add next 2 figures from presentation with describtion.
Ausarbeitung: org: add next figure from presentation with description.

* Completes covering the "Beispiele für Dependency Diagrams" subsection of the presentation. (Beispiel: MAD (Ausschnitt) is left out.)