move documentation into bundle.

bundles/docs/pages/encryption.md

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+# Encryption
+
+## Contents
+
+- [The Basics](#the-basics)
+- [Encrypting A String](#encrypt)
+- [Decrypting A String](#decrypt)
+
+<a name="the-basics"></a>
+## The Basics
+
+Laravel's **Crypter** class provides a simple interface for handling secure, two-way encryption. By default, the Crypter class provides strong AES-256 encryption and decryption out of the box via the Mcrypt PHP extension.
+
+> **Note:** Don't forget to install the Mcrypt PHP extension on your server.
+
+<a name="encrypt"></a>
+## Encrypting A String
+
+#### Encrypting a given string:
+
+	$encrypted = Crypter::encrypt($value);
+
+<a name="decrypt"></a>
+## Decrypting A String
+
+#### Decrypting a string:
+
+	$decrypted = Crypter::decrypt($encrypted);
+
+> **Note:** It's incredibly important to point out that the decrypt method will only decrypt strings that were encrypted using **your** application key.