How can I attach a photo to the message?

How can I attach a photo to the message?

The Controller Bot Team

Choose ‘Attach Photo’ at a message preview and then send a photo you want to attach. All attached photos are anonymously uploaded to telegra.ph and stored there forever.

Also, it's possible to attach your own link which can contain not only an image, but any other content too. For this just send a link instead of a photo.