Merge pull request brix#148 from thg303/improve-documentation

improve documentation

README.md

@@ -111,13 +111,13 @@ See: https://code.google.com/p/crypto-js
 var CryptoJS = require("crypto-js");
 
 // Encrypt
-var ciphertext = CryptoJS.AES.encrypt('my message', 'secret key 123');
+var cipherText = CryptoJS.AES.encrypt('my message', 'secret key 123').toString();
 
 // Decrypt
-var bytes  = CryptoJS.AES.decrypt(ciphertext.toString(), 'secret key 123');
-var plaintext = bytes.toString(CryptoJS.enc.Utf8);
+var bytes  = CryptoJS.AES.decrypt(ciphertext, 'secret key 123');
+var originalText = bytes.toString(CryptoJS.enc.Utf8);
 
-console.log(plaintext);
+console.log(originalText); // 'my message'
 ```
 
 #### Object encryption
@@ -128,13 +128,13 @@ var CryptoJS = require("crypto-js");
 var data = [{id: 1}, {id: 2}]
 
 // Encrypt
-var ciphertext = CryptoJS.AES.encrypt(JSON.stringify(data), 'secret key 123');
+var ciphertext = CryptoJS.AES.encrypt(JSON.stringify(data), 'secret key 123').toString();
 
 // Decrypt
-var bytes  = CryptoJS.AES.decrypt(ciphertext.toString(), 'secret key 123');
+var bytes  = CryptoJS.AES.decrypt(ciphertext, 'secret key 123');
 var decryptedData = JSON.parse(bytes.toString(CryptoJS.enc.Utf8));
 
-console.log(decryptedData);
+console.log(decryptedData); // [{id: 1}, {id: 2}]
 ```
 
 ### List of modules