Documentation of Update button needs more info

[athulin]

Describe the enhancement

In the documentation of the Update button, add information about what CAPI information is requested, and to what endpoints that information is sent. In particular, is it sent to plugins also?

Additional context

The question arose from a question on Reddit, where a user asked how he could ensure that an Exobio discovery was reported to the Canonn database. The question then became if the update info will be resent to the EDMC Canonn plugin, or if it only sent to the EDDN/EDSM/Inara endpoints (assuming they're enabled).

As the current documentation doesn't seem to say what EDMC does on Update, I suggest the clarification should be added.

[Athanasius]

With regards to plugins, it's in the plugin developer documentation: https://github.com/EDCD/EDMarketConnector/blob/main/PLUGINS.md#data-from-frontier-capi

More generally there are resources like https://siriuscorp.cc/contributing.html

But, sure, maybe user-facing EDMC documentation could be better about this. I'm sure contributions are welcome (but as that's in the Wiki you can't do a PR, sucks eh ?).