docs: add illustrations

README.md

@@ -39,6 +39,14 @@ manager).
 I also published an official template for the Trigon theme on the [Overleaf
 template gallery][trigon-overleaf] to bootstrap quickly a presentation.
 
+#### Examples
+
+Applied Sciences                   |  Philosophy
+----------------------------------------|---------------------------------------
+![](screenshots/apps_demo-01.jpg)  |  ![](screenshots/phi_demo-01.jpg)
+![](screenshots/apps_demo-03.jpg)  |  ![](screenshots/phi_demo-03.jpg)
+![](screenshots/apps_demo-04.jpg)  |  ![](screenshots/phi_demo-04.jpg)
+
 ### ULiege-trigonthesis
 
 **WORK IN PROGRESS**: Not released yet.