fix: fix a typo (#378)

pages/sdk-protocol-kit/guides/signatures/transactions.mdx

@@ -42,7 +42,7 @@ class EthSafeTransaction implements SafeTransaction {
 
 Once the `safeTransaction` object is created, we need to collect the signatures from the signers who will sign it.
 
-Following our [setup](../signatures.md), we will sign a Safe transaction from `safe3_4`, the main Safe account in this guide. To do that, we first need to sign the same transaction with its owners: `owner1`, `owner2`, `safe1_1, and `safe2_3`.
+Following our [setup](../signatures.md), we will sign a Safe transaction from `safe3_4`, the main Safe account in this guide. To do that, we first need to sign the same transaction with its owners: `owner1`, `owner2`, `safe1_1`, and `safe2_3`.
 
 ### ECDSA signature