Significant updated of the README

Included the description of FRaMED as a SPL, updated the image and added the reference.

README.md

-# FRaMED (2.0)
+# FRaMED SPL (2.0)
 
 
-FRaMED-2.0 is the reimplementation of the  Full-fledged Role Modeling EDitor allowing the graphical specification of Role-based Software Systems
-by means of *compartments* (aka. *contexts*), *objects*, *roles*, and *relationships*.
-Additionally, it supports a varity of constraints upon roles and relationships. 
+The *Full-fledged Role Modeling EDitor Software Product Line* (FRaMED SPL) (Version 2.0) is the reimplementation of FRaMED allowing the graphical specification of Role-based Software Systems by means of *compartments* (aka. *contexts*), *objects*, *roles*, and *relationships*. Moreover, it supports a varity of constraints upon roles and relationships.
 
-See the [wiki](https://github.com/Eden-06/FRaMED-2/wiki) for further information.
+While this was already possible in [FRaMED](https://github.com/leondart/FRaMED), this editor is a feature modular *graphical editor product line* (GEPL)¹ that permits users to dynamically reconfigure the available concepts, as well as constraints and developers to modularly extending the language family adding and removing concepts and constraints.
 
-![Graphical user interface of FRaMED](https://github.com/leondart/FRaMED/wiki/img/ORMEditor_1.png)
+Further information can be found in the [wiki](https://github.com/Eden-06/FRaMED-2.0/wiki).
+
+![Graphical user interface of FRaMED SPL](https://raw.githubusercontent.com/wiki/Eden-06/FRaMED-2.0/Images/framed-spl.png)
+
+¹) Thomas Kühn, Kevin Ivo Kassin, Walter Cazzola, and Uwe Aßmann, *Modular Feature-Oriented Graphical Editor Product Lines*. In Proceedings of the 22th International Software Product Line Conference, ACM, 2018.