Update link in DAO withdrawal process gotchas

[eval-exec]

Add PR link for the "64 output cells limitation": nervosnetwork/ckb-system-scripts#93

@phroi @chenyukang @zhangsoledad @quake

[Copilot]

Pull request overview

Updates the Nervos DAO deposit/withdraw RFC’s “Gotchas” section to include a direct reference to the upstream discussion about potentially relaxing the 64-output limit, giving readers a clearer path to follow future changes.

Changes:

• Adds a link to nervosnetwork/ckb-system-scripts PR #93 from the “64 output cells” limitation note.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[phroi]

@eval-exec you see, that's the issue: most auditors still pick-up the design without the 64 bit limitation, which is not the one deployed on-chain.

Looking at the commit timestamps, the version actually committed on mainnet should be:

https://github.com/nervosnetwork/ckb-system-scripts/blob/f25c5ae8824c4907ad94326a0113a03defab9bfc/c/dao.c

The commit message reads "fix: NervosDAO review fixes" and it's dated 2019/11/02

The one instead I would like to propose as link in the DAO RFC is dated 2020/05/25, it has the same code except it greatly improve comments:

https://github.com/nervosnetwork/ckb-system-scripts/blob/814eb82c44f560dbdad2be97eb85464062920237/c/dao.c

Also it was the last commit on dao.c before my relatively recent PR.

Phroi