Broken link to communicator docs

[wondering639]

Overview of the Issue

In https://github.com/hetznercloud/packer-plugin-hcloud/blob/main/docs/builders/hcloud.mdx the link to the communicator docs is broken:

In addition to the options listed here, a communicator can be configured for this builder.

Searching for "communicator" in the repo also does not provide a file named like this in another folder.