Add section on efficiency considerations for zkLogin

[mskd12]

Description

Describe the changes or additions included in this PR.

Test Plan

How did you test the new or updated feature?

---

If your changes are not user-facing and do not break anything, you can skip the following section. Otherwise, please briefly describe what has changed under the Release Notes section.

Type of Change (Check all that apply)

• [ ] protocol change
• [ ] user-visible impact
• [ ] breaking change for a client SDKs
• [ ] breaking change for FNs (FN binary must upgrade)
• [ ] breaking change for validators or node operators (must upgrade binaries)
• [ ] breaking change for on-chain data layout
• [ ] necessitate either a data wipe or data migration

Release notes

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Name	Status	Preview	Comments	Updated (UTC)
explorer	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 31, 2024 6:28pm
mysten-ui	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 31, 2024 6:28pm
sui-core	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 31, 2024 6:28pm
sui-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 31, 2024 6:28pm

3 Ignored Deployments

Name	Status	Preview	Comments	Updated (UTC)
multisig-toolkit	⬜️ Ignored (Inspect)	Visit Preview		May 31, 2024 6:28pm
sui-kiosk	⬜️ Ignored (Inspect)	Visit Preview		May 31, 2024 6:28pm
sui-typescript-docs	⬜️ Ignored (Inspect)	Visit Preview		May 31, 2024 6:28pm

[mskd12]

@ronny-mysten I moved the above update to the integrations page following your split.

[ronny-mysten]

I moved the above update to the integrations page following your split.

Jeez, I forgot about this PR @mskd12 . Sorry, I shoulda warned you.