Update and closing 248th online meetup 2025 08 16#476

Merged

jongfeel merged 3 commits intomainfrom

471-248th-online-meetup-2025-08-16

Aug 24, 2025

Commits on Aug 17, 2025

Update joined count ranking table until 248th online meetup
jongfeel
committed
Add joined stamps, starbucks e-gift item and book count on 248th online meetup
jongfeel
committed

Commits on Aug 24, 2025

Add 250th online meetup link
jongfeel
committed