linking of images to documents

[eshellman]

alt-text-backend/openapi.yaml

Lines 298 to 304 in 7afe104

	- name: srcQ
	in: query
	description: String to match the title to.
	required: false
	explode: true
	schema:
	type: string

this bit seems to imply that you're doing something other than using foreign keys to link images to books.