final link fix

Author: LouisVasseur

README.md

@@ -22,7 +22,7 @@ Website Prototype: [Website URL](https://com-480-data-visualization.github.io/mo
 
 Process book: [PDF Report](milestones/milestone-3/process-book.pdf)
 
-Screencast: [(milestones/milestone-3/screencast.mp4)]
+Screencast: [Screencast](milestones/milestone-3/screencast.mp4)
 
 Website: [Website URL](https://com-480-data-visualization.github.io/mobava/)