diff --git a/resources/dev_notes.md b/resources/dev_notes.md
index 422e3cd..aee8030 100644
--- a/resources/dev_notes.md
+++ b/resources/dev_notes.md
@@ -39,7 +39,7 @@ Here you can find some helpful information about the project and the code.
 ```
 
 ### Class Hierarchy
-![](plots-uml_class.svg)
+![](images/plots-uml_class.svg)
 
 The implementation of the classes can be found in Models.py.
 
@@ -51,13 +51,13 @@ The number of the area is denoted in brackets (i.e. (1)).
 Additionally, the points used in the testcases are denoted.
 
 #### BaseModel
-![](plots-base.svg)
+![](images/plots-base.svg)
 
 #### BargainingPowerModel
-![](plots-bargaining_power.svg)
+![](images/plots-bargaining_power.svg)
 
 #### UnobservableModel
-![](plots-unobservable.svg)
+![](images/plots-unobservable.svg)
 
 #### AcquisitionModel
-![](plots-acquisition.svg)
+![](images/plots-acquisition.svg)
diff --git a/resources/plots-acquisition.svg b/resources/images/plots-acquisition.svg
similarity index 100%
rename from resources/plots-acquisition.svg
rename to resources/images/plots-acquisition.svg
diff --git a/resources/plots-bargaining_power.svg b/resources/images/plots-bargaining_power.svg
similarity index 100%
rename from resources/plots-bargaining_power.svg
rename to resources/images/plots-bargaining_power.svg
diff --git a/resources/plots-base.svg b/resources/images/plots-base.svg
similarity index 100%
rename from resources/plots-base.svg
rename to resources/images/plots-base.svg
diff --git a/resources/plots-uml_class.svg b/resources/images/plots-uml_class.svg
similarity index 100%
rename from resources/plots-uml_class.svg
rename to resources/images/plots-uml_class.svg
diff --git a/resources/plots-unobservable.svg b/resources/images/plots-unobservable.svg
similarity index 100%
rename from resources/plots-unobservable.svg
rename to resources/images/plots-unobservable.svg
diff --git a/resources/plots.drawio b/resources/images/plots.drawio
similarity index 100%
rename from resources/plots.drawio
rename to resources/images/plots.drawio
diff --git a/resources/images/sm21.png b/resources/images/sm21.png
new file mode 100644
index 0000000..4f67b55
Binary files /dev/null and b/resources/images/sm21.png differ