fix(core-contracts): [N06] fix some typographical errors

packages/core/contracts/cross-chain-oracle/GovernorSpoke.sol

@@ -28,7 +28,7 @@ contract GovernorSpoke is Lockable, ChildMessengerConsumerInterface {
 
     /**
      * @notice Executes governance transaction created on Ethereum.
-     * @dev Can only called by ChildMessenger contract that wants to execute governance action on this child chain that
+     * @dev Can only be called by ChildMessenger contract that wants to execute governance action on this child chain that
      * originated from DVM voters on root chain. ChildMessenger should only receive communication from ParentMessenger
      * on mainnet.
 

packages/core/contracts/cross-chain-oracle/chain-adapters/Admin_ChildMessenger.sol

@@ -10,7 +10,7 @@ import "../../common/implementation/Lockable.sol";
  * @notice A version of the child messenger that allows an admin to relay messages on its behalf.
  * @dev No parent messenger is needed for this case, as the admin could be trusted to manually send DVM requests on
  * mainnet. This is intended to be used as a "beta" deployment compatible with any EVM-compatible chains before
- * impleenting a full bridge adapter. Put simply, it is meant as a stop-gap.
+ * implementing a full bridge adapter. Put simply, it is meant as a stop-gap.
  */
 contract Admin_ChildMessenger is Ownable, Lockable, ChildMessengerInterface {
     // The only child network contract that can send messages over the bridge via the messenger is the oracle spoke.

packages/core/contracts/cross-chain-oracle/chain-adapters/Optimism_ChildMessenger.sol

@@ -9,7 +9,7 @@ import "../../common/implementation/Lockable.sol";
 
 /**
  * @notice Sends cross chain messages from Optimism L2 to Ethereum L1 network.
- * @dev This contract is ownable via the onlyCrossDomainAccount modifier, restricting ownership to the cross-domain
+ * @dev This contract is ownable via the onlyFromCrossDomainAccount. modifier, restricting ownership to the cross-domain
  * parent messenger contract that lives on L1.
  */
 contract Optimism_ChildMessenger is CrossDomainEnabled, ChildMessengerInterface, Lockable {
@@ -95,7 +95,7 @@ contract Optimism_ChildMessenger is CrossDomainEnabled, ChildMessengerInterface,
      * @dev The caller must be the the parent messenger, sent over the canonical message bridge.
      * @param data data message sent from the L1 messenger. Should be an encoded function call or packed data.
      * @param target desired recipient of `data`. Target must implement the `processMessageFromParent` function. Having
-     * this as a param enables the L1 Messenger to send messages to arbitrary addresses on the L1. This is primarily
+     * this as a param enables the L1 Messenger to send messages to arbitrary addresses on the L2. This is primarily
      * used to send messages to the OracleSpoke and GovernorSpoke on L2.
      */
     function processMessageFromCrossChainParent(bytes memory data, address target)

packages/core/contracts/financial-templates/optimistic-rewarder/OptimisticRewarderBase.sol

@@ -193,7 +193,7 @@ abstract contract OptimisticRewarderBase is Lockable, MultiCaller {
         bytes32 redemptionId = getRedemptionId(tokenId, cumulativeRedemptions);
 
         // This automatically checks that redemptions[redemptionId] != 0.
-        // Check that it has not passed liveness liveness.
+        // Check that it has not passed liveness.
         Redemption storage redemption = redemptions[redemptionId];
         require(getCurrentTime() < redemption.expiryTime, "redemption expired or nonexistent");