Updating name of constructor function

Defining constructors as functions with the same name as the contract is deprecated.

mytoken.sol

@@ -12,7 +12,7 @@ contract MyToken {
     event Transfer(address indexed from, address indexed to, uint256 value);
 
     /* Initializes contract with initial supply tokens to the creator of the contract */
-    function MyToken(uint256 _supply, string _name, string _symbol, uint8 _decimals) public {
+    constructor(uint256 _supply, string _name, string _symbol, uint8 _decimals) public {
         /* if supply not given then generate 1 million of the smallest unit of the token */
         if (_supply == 0) _supply = 1000000;