Update docs

docs/modules/api/examples/access-control/AccessControlModified.sol

@@ -5,10 +5,10 @@ pragma solidity ^0.8.20;
 import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
 
 contract AccessControlModified is AccessControl {
-    error AccessControlNonRevokable();
+    error AccessControlNonRevocable();
 
     // Override the revokeRole function
     function revokeRole(bytes32, address) public pure override {
-        revert AccessControlNonRevokable();
+        revert AccessControlNonRevocable();
     }
 }