Fix comments.

Author: MoMannn

src/contracts/tokens/nf-token-enumerable.sol

@@ -13,7 +13,7 @@ contract NFTokenEnumerable is
 {
 
   /**
-   * List of revert message codes. Implementing dApp should handle showing the correct message.
+   * @dev List of revert message codes. Implementing dApp should handle showing the correct message.
    * Based on 0xcert framework error codes.
    */
   string constant INVALID_INDEX = "005007";

src/contracts/tokens/nf-token.sol

@@ -3,7 +3,6 @@ pragma solidity 0.8.0;
 
 import "./erc721.sol";
 import "./erc721-token-receiver.sol";
-import "../math/safe-math.sol";
 import "../utils/supports-interface.sol";
 import "../utils/address-utils.sol";
 
@@ -17,7 +16,7 @@ contract NFToken is
   using AddressUtils for address;
 
   /**
-   * List of revert message codes. Implementing dApp should handle showing the correct message.
+   * @dev List of revert message codes. Implementing dApp should handle showing the correct message.
    * Based on 0xcert framework error codes.
    */
   string constant ZERO_ADDRESS = "003001";

src/contracts/utils/erc165.sol

@@ -10,7 +10,7 @@ interface ERC165
 
   /**
    * @dev Checks if the smart contract includes a specific interface.
-   * @notice This function uses less than 30,000 gas.
+   * This function uses less than 30,000 gas.
    * @param _interfaceID The interface identifier, as specified in ERC-165.
    * @return True if _interfaceID is supported, false otherwise.
    */