Document struct and list merging in configuration server

[tsipinakis]

What would you like to add/change in the documentation?

Investigate the behaviour of struct merging, especially when it pertains to lists, when returning results from the configuration server and the configs have to be merged. A user reported that lists with multiple items overrode entire objects if e.g. only the 3rd item needed updating.

The underlying backend is the mergo library.

Where did you try to find the information?

https://containerssh.io/reference/configserver/?h=server