Finish rewards example

[kshitjee]

Description

1. Added a function transfer_admin to transfer ownership of code object (ability to upgrade)
2. Wrote a short tutorial and add to README file

View original PR

Test Plan

Unit tests

[trunk-io]

⏱️ 34m total CI duration on this PR

Job	Cumulative Duration	Recent Runs
run-tests-main-branch	32m	🟥 🟥 🟥 🟥 🟥
file_change_determinator	54s	🟩 🟩 🟩 🟩 🟩
permission-check	17s	🟩 🟩 🟩 🟩 🟩
permission-check	16s	🟩 🟩 🟩 🟩 🟩
permission-check	14s	🟩 🟩 🟩 🟩 🟩
permission-check	14s	🟩 🟩 🟩 🟩 🟩

🚨 1 job on the last run was significantly faster/slower than expected

Job	Duration	vs 7d avg	Delta
run-tests-main-branch	6m	4m

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