mtm: add page

[HobbitJack]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page(s) have at most 8 examples.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known): mtm is considered finished and no version number is provided.

[Managor]

This is the only change I'd make.

[HobbitJack]

This is the only change I'd make.

Applied.

[MachiavelliII]

Thanks for your contribution.