Split current 'order with promo' chapter into two separate chapters#52

Open

feihong wants to merge 13 commits intomainfrom

Commits on Aug 6, 2024

Add chapter 'from polymorphic to normal variant'
feihong
committed

Commits on Aug 14, 2024

Clarify difference between variant constructor and variant tag
feihong
committed

Commits on Aug 15, 2024

Commits on Sep 4, 2024

Remove effects material
feihong
committed

Commits on Sep 5, 2024

Update the code in src/order-with-promo
feihong
committed

Commits on Sep 6, 2024

Complete exercise 2
feihong
committed

Commits on Sep 10, 2024

Add exercise 4
feihong
committed

Commits on Sep 11, 2024

Delete exercise 5
feihong
committed

Commits on Sep 12, 2024

Commits on Sep 13, 2024

Ascribe change in polymorphic variant syntax to Reason, not Melange
feihong
committed

Commits on Sep 17, 2024

Add sections about type-related error messages and putting `discount` type inside a submodule
feihong
committed