Update README.md

Author: SelormDev

README.md

@@ -43,7 +43,8 @@ I am dedicated to self-paced learning, focusing on mastering the fundamentals of
 | :--------------------------------- | :---------: |
 | 0: Introduction                    | Completed   |
 | 1a: Beginning Student Language     | Completed   |
-| 1b: How to Design Functions        | [Attempting Quiz 1](Core-CS/Systematic-Program-Design/Part-01/1b-HtDF/quiz/quiz-1.rkt) |
+| 1b: How to Design Functions        | Completed   |
+| 2: How to Design Data              | In Progress |
 
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