Document what a Minimal Receiver Contract entails

[avious00]

From community member:

The docs are pretty unclear regarding how to create a minimal receiver contract. I notice that there are snippets, but a full example of what a minimal receiver should look like would be much clearer, something like:

import "@hyperlane/interfaces/IMessageRecipient";
import "@hyperlane/client/MailboxClient";

contract MyHyperlaneReceiver is IMessageRecipient, MailboxClient {
  constructor (address _hyperlaneMailbox) MailboxClient(_hyperlaneMailbox) {}

  function handle (
    uint32 _origin,
    bytes32 _sender,
    bytes calldata _data
  ) onlyMailbox {
    // do stuff
  }
}

[Ash-code183]

Hey @paulbalaji @avious00 i can help with this task if you could give me more context upon the document which needs to be updated