All the information is on that card, the address of your voting station, opening and closing time of the voting station, advance voting days and other information that you need to knows.
This card been sent out a few weeks ago, if you still have not received it, you have to call Elections Canada and hopfully you can still make it on the voter list before it is too late.
Don't forget to bring a ID to prove identity and address, eg. driver license. This is a new requirement.