Fixed tab name for the Content Letter Grade documentation
Fixed table with per-element description for the spec-configuration page
Fixed response example for the spec:configuration (by style ID)
Merge branch 'fixes' into prod-fork-master

Conflicts:
	api-documentation/vehicle/content_letter_grade/v2/01_by_mmy/api-parameters.md
	api-documentation/vehicle/content_letter_grade/v2/02_by_id/api-parameters.md