Short descriptions for Canadian History collections

Short descriptions should be revised as follows, and the sentences about related collections should also be included in the longer descriptions on the cards.

• Canadian History description currently reads: A collection of people, places, and other entities related to documentary records of Canadian colonization, settlement, and history. Revise to: A collection of people, places, and other entities related to documentary records of Canadian colonization, settlement, and history. Combines Historical Canadian Persons and Indian Affairs.
• Historical Canadian Persons description currently reads: People related to Canadian History. Revise to: People related to Canadian History. Included in the Canadian History dataset.
• Indian Affairs description currently reads: Indian Affairs Agents from Library and Archives Canada records. Revise to: Agents of the Canadian government's former Department of Indian Affairs, based on Library and Archives Canada records. Included in the Canadian History dataset.