Add Manage Premium Subscription Example and Update Examples Section#9

Merged

ThisaruGuruge merged 2 commits intoballerina-platform:mainfrom

RNViththagan:example-update

Jul 1, 2025

Commits on Jul 1, 2025

Add initial implementation for manage premium subscription example
RNViththagan
committed
Add manage-premium-subscription example and update .github/README.md with new example link
RNViththagan
committed