[Reference] updated framework config reference

[1ed]

Q	A
Doc fix?	yes
New docs?	no
Applies to	2.2-RC2+
Fixed tickets	-

This was generated by the php app/console config:dump-reference framework command.

Maybe these config sections should be removed and just add a note how to generate them.

[stof]

@1ed they should not be removed IMO. Having them in the doc is easier for people searching for it

[weaverryan]

Yea, these reference sections are tricky, but we keep them for 2 reasons:

1. As @stof noted, it makes them searchable
2. We can add additional details that the generator can't get to. This can include comments, but also "more correct" default values in some cases (e.g. something defaults to null but the service it feeds into defaults that argument to foo, making foo the somewhat "most correct" default value.

This is great though, thanks for the update! This will need to be part of an ongoing maintenance.