Rename example sshd files

Test Plan: Looked at new files, made sure the only changes were to rename the files in line with the documentation

Reviewers: O1 Blessed Committers, eax

Reviewed By: O1 Blessed Committers, eax

Subscribers: speck, tobiaswiese

Maniphest Tasks: T15017

Differential Revision: https://we.phorge.it/D25010
Repository: rP Phorge
Author: Matthew
Commit Date: Jun 21 2021