Changes to GET /users/:user_pk/contacts/:pk

the response's body type changed from no type to object for status 200

added the media type application/json for the response with the status 400

added the optional property events to the response with the 200 status

added the optional property id to the response with the 200 status

added the optional property value to the response with the 200 status

added the required property status to the response with the 200 status

added the required property tags to the response with the 200 status

added the required property type to the response with the 200 status

endpoint added