docs: Revisions to /concepts/transactions pages (#24425)

## Description 

Describe the changes or additions included in this PR.

## Test plan 

How did you test the new or updated feature?

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## Release notes

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- [ ] Protocol: 
- [ ] Nodes (Validators and Full nodes): 
- [ ] gRPC:
- [ ] JSON-RPC: 
- [ ] GraphQL: 
- [ ] CLI: 
- [ ] Rust SDK:
- [ ] Indexing Framework:

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Co-authored-by: ronny-mysten <[email protected]>

Author: jessiemongeon1

docs/content/concepts/cryptography/passkeys.mdx

@@ -9,7 +9,7 @@ Passkey provides a secure and user-friendly alternative for submitting transacti
 - Mobile devices, such as smartphones and tablets  
 - Platform-based authenticators, such as Face ID and Touch ID  
 
-Passkey simplifies authentication by removing the need to manage seed phrases or private keys manually. Instead, it relies on device-based authentication and cloud synchronization, allowing seamless, phishing-resistant access across multiple devices. You can also use passkey in a [multisig setup](./transaction-auth/multisig.mdx), which provides more flexibility to build secure and recoverable wallet experiences.
+Passkey simplifies authentication by removing the need to manage seed phrases or private keys manually. Instead, it relies on device-based authentication and cloud synchronization, allowing seamless, phishing-resistant access across multiple devices. You can also use passkey in a [multisig setup](/concepts/transactions/transaction-auth/multisig.mdx), which provides more flexibility to build secure and recoverable wallet experiences.
 
 By supporting the passkey signature scheme, Sui improves security and accessibility, making it easier for users to manage their accounts with hardened security. Passkey-based wallets are tied to the origin, meaning they cannot be phished or used on a different site. This makes passkey a more secure authentication option.
 
@@ -37,7 +37,7 @@ Passkey support is available in beta in Sui Devnet and Testnet. Mainnet release
   Cloud-synced passkey helps users recover access if they lose a device.  
 
 - **Work with multisig wallets:**  
-  Combine passkey with other authentication types to build 2-of-2 or m-of-n [multisig wallets](./transaction-auth/multisig.mdx). This enables secure recovery options and shared access patterns.  
+  Combine passkey with other authentication types to build 2-of-2 or m-of-n [multisig wallets](/concepts/transactions/transaction-auth/multisig.mdx). This enables secure recovery options and shared access patterns.  
 
 ## Limitations of passkey