Update README.md

Author: ctalkington

README.md

@@ -17,7 +17,7 @@ You can also use `npm install https://github.com/archiverjs/node-crc32-stream/ar
 Inherits [Transform Stream](http://nodejs.org/api/stream.html#stream_class_stream_transform) options and methods.
 
 ```js
-const { CRC32Stream } = require("crc32-stream");
+import { CRC32Stream } from "crc32-stream";
 
 const source = fs.createReadStream("file.txt");
 const checksum = new CRC32Stream();
@@ -39,7 +39,7 @@ checksum.end();
 Inherits [zlib.DeflateRaw](http://nodejs.org/api/zlib.html#zlib_class_zlib_deflateraw) options and methods.
 
 ```js
-const { DeflateCRC32Stream } = require("crc32-stream");
+import { DeflateCRC32Stream } from "crc32-stream";
 
 const source = fs.createReadStream("file.txt");
 const checksum = new DeflateCRC32Stream();