doc: Add release notes for 17447
doc: Add release notes for 17447

Co-Authored-By: Russell Yanofsky <d1818e90f775d1fa111cabb0c1a59ce802530221@yanofsky.org>

peercoin/peercoin,peercoin/peercoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,peercoin/peercoin,DigitalPandacoin/pandacoin,DigitalPandacoin/pandacoin,peercoin/peercoin,peercoin/peercoin,DigitalPandacoin/pandacoin,peercoin/peercoin