Document the Facet VBO URL handler for VBO driven Views (Search and replace & colleagues) + default Solr Limit

[DiegoPino]

What?

We deliver pre-configured facets for Search and Replace and a default/Solr Server wide default limit. But if a user adds a new facet it might be unaware that the VBO URL processor needs to be enabled to have the "visible" list/count of objects be respected during actual VBO process.

I'm unaware of us having docs for this, but maybe we have. But also I have explained this so many times in slack and live calls that I might just have residual memory of all of this (or I have become the documentation)

@alliomeria assigning this to you

[alliomeria]

Ok @DiegoPino , think something could be added to the general F&R documentation about this. Not sure it makes sense to break out into its own document. That sound good to you?

[DiegoPino]

Yes. Sounds good to me, Eventually we will have to build specific facet docs, given that people keep asking for new features in that realm, but that is a tomorrow problem.

[alliomeria]

Added this babc48b (& 538a27a, updated), to be included in an upcoming larger PR for the 1.4.0 docs. Let me know if this wording reads well @DiegoPino. Thank you!

[DiegoPino]

reads well @alliomeria thanks!

[alliomeria]

Part of #200 (it has begun...)