Update README.md

Author: utgoer

README.md

@@ -39,7 +39,7 @@ https://boardgamegeek.com/boardgame/6931/katamino
 
 ## Reports
  - [Analysis Report](https://github.com/utgoer/Katamino/blob/master/doc/2F.Analysis.Iteration1.2018.10.21.pdf)
- - Design Report
+ - [Design Report](https://github.com/utgoer/Katamino/blob/master/doc/2F.Design.Iteration1.2018.11.08.pdf)
  - Final Report
 
 ## Progress