[DOC] Documentation for ingest-attachment Plugin

[ldrick]

What do you want to do?

• [ ] Request a change to existing documentation
• [x] Add new documentation
• [ ] Report a technical problem with the documentation
• [ ] Other

Tell us about your request. The "ingest-attachment" Plugin has no documentation, how to use it.

Version: 2.15

What other resources are available? Unfortunately none, it is just in the List of available Plugins.