Add an Example for MailboxAddress(Encoding, String, String) Constructor

[Clue Developers]

Please add an example for MailboxAddress(Encoding, String, String) Constructor.

TODO (optional): Describe a specific scenario you would like to see addressed.

Help Topic: http://www.mimekit.net/docs/html/M_MimeKit_MailboxAddress__ctor_3.htm

[Jeffrey Stedfast]

Is there something you don't understand about this API?

[Jeffrey Stedfast]

var mailbox = new MailboxAddress (Encoding.UTF8, "John Smith", "[e-mail]");