Put sample text in the connect to Windows server dialog to help the user

Put sample text in the field to help the user to fill out the form. At the moment empty fields are not very helpful.

I would recommend :

- [ ] server: 12.34.56.78
- [ ] folder: nothing
- [x] Domain name: WORKGROUP

Bounty: https://www.bountysource.com/issues/7004042-put-sample-text-in-the-connect-to-windows-server-dialog-to-help-the-user

---
Want to back this issue? **[Post a bounty on it!](https://www.bountysource.com/issues/50211053-put-sample-text-in-the-connect-to-windows-server-dialog-to-help-the-user?utm_campaign=plugin&utm_content=tracker%2F65602118&utm_medium=issues&utm_source=github)** We accept bounties via [Bountysource](https://www.bountysource.com/?utm_campaign=plugin&utm_content=tracker%2F65602118&utm_medium=issues&utm_source=github).