adjust link

Author: LouisVasseur

README.md

@@ -23,7 +23,7 @@ Website Prototype: [Website URL](https://com-480-data-visualization.github.io/mo
 
 Process book: [PDF Report](milestones/milestone-3/process-book.pdf)
 For the process book, we provide two versions: 
-- One version with a cover page. Given that it is a cover page without main text, this version is 9 pages long as allowed in [this ed post](https://edstem.org/eu/courses/3126/discussion/235981)
+- One version with a cover page. Given that it is a cover page without main text, this version is 9 pages long as allowed in [this ed post](https://edstem.org/eu/courses/3126/discussion/236017)
 - in case the 8-page limit is strict, we also provide a version [without a cover page](milestones/milestone-3/process-book.pdf), which is 8 pages long
 
 Screencast: [Screencast](milestones/milestone-3/screencast.mp4)