Update content/tutorials/permissionless-paymaster/10.index.md

Co-authored-by: Antonio <[email protected]>

content/tutorials/permissionless-paymaster/10.index.md

@@ -21,7 +21,7 @@ You will:
 - Some background knowledge on the concepts covered by the tutorial would be helpful too. Have a look at the following
   docs:
   - [EIP-712 standard for typed message signing](https://eips.ethereum.org/EIPS/eip-712).
-  - [Transaction lifecycle](https://docs.zksync.io/zk-stack/concepts/transaction-lifecycle#eip-712-0x71) on zkSyn Era.
+  - [Transaction lifecycle](https://docs.zksync.io/zk-stack/concepts/transaction-lifecycle#eip-712-0x71) on ZKsync Era.
   - [Gas estimation for transactions](https://docs.zksync.io/build/developer-reference/fee-model#gas-estimation-for-transactions) guide.
   - [Introduction to system contracts especially NonceHolder](https://docs.zksync.io/build/developer-reference/era-contracts/system-contracts#nonceholder).
 - You know how to get your [private key from your MetaMask wallet](https://support.metamask.io/hc/en-us/articles/360015289632-How-to-export-an-account-s-private-key).