amendment: 2026-A2 Update to Duties of Marketing Directors

[TianLangHin]

Rationale

• Currently, the role of Marketing Directors encompasses the development of all promotional material as well as the management of the Society's social media accounts.
• This amendment seeks to clearly demarcate the roles of Marketing Directors, so that Marketing Directors can (if needed) dedicate themselves to the creation of promotional material and themes, and not need to have attention split between this and managing the Society's social media accounts.
• For the responsibility of managing social media accounts, see Amendment 2026-A3.

[RealDishwash]

lgtm