Add clarification about check

Author: bradleycamacho

pages/interop/superchain-erc20.mdx

@@ -117,7 +117,7 @@ sequenceDiagram
 Application developers must complete two steps to make their tokens compatible with `SuperchainERC20`.
 Setting this up in advance ensures tokens will benefit from interop when it becomes available.
 
-*   Your contract must implement `crosschainMint` and `crosschainBurn`, and include a check that the `SuperchainTokenBridge` (address `0x4200000000000000000000000000000000000028`) can call them. No additional permissioning or role setup is required.
+*   Your contract must implement `crosschainMint` and `crosschainBurn` , and allow the `SuperchainTokenBridge` (address 0x4200000000000000000000000000000000000028) to call them. No additional permissioning or role setup is required.
     If you are using [`SuperchainERC20`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/SuperchainERC20.sol) this is already done for you.
 
     {/*