README.md

@@ -1,14 +1,5 @@
 # From Flying Balls to Colliding Polygons
 
-## Table of contents
-
-- [Abstract](#abstract)
-- [Before vs After](#before-vs-after)
-  - [Context](#context)
-  - [Before](#before)
-  - [After](#after)
-- [Contact](#contact)
-
 ## Abstract
 
 > (text taken from the abstract of my report that you can find
@@ -39,8 +30,6 @@ crucial that the simulation code be efficient to obtain smooth animations.
 
 ## Before vs After
 
-### Context
-
 A little of context for the follow videos:
 
 - in the first video, the special ball with an arrow inside is a "spaceship",
@@ -55,11 +44,11 @@ A little of context for the follow videos:
 
 ### Before
 
-https://github.com/karma-riuk/flying-balls/assets/30158492/ddc0d608-9667-4a21-8132-e056e443e0e2
+![before video](before.webm)
 
 ### After
 
-https://github.com/karma-riuk/flying-balls/assets/30158492/bd4013b8-bc01-4d52-aa2f-44dbc25de717
+[after video](after.mp4)
 
 <!-- ## Controls -->
 <!---->