added a working inheritance example

[sebastianovide]

fixes https://github.com/hivedb/hive/issues/664

[vercel[bot]]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/leisim/docs/AYCLvtUdaxaRqpXZfCQoEbbse5Gg
✅ Preview: https://docs-git-fork-sebastianovide-inheritance-doc-leisim.vercel.app