Alex is asking people to read the list, and if their information is correct, to put a check symbol, or a checkmark, next to their name.
Alex says that everyone will get a copy of the list within a few days so that they can keep in touch between meetings.
"To keep in touch" means to remain in contact, to continue to communicate with someone.
At the end of the meeting, Alex says, "That's a wrap" (wrap).
"That's a wrap" is a very informal expression used to end a presentation or a meeting.
It's actually an expression that is used when someone is making a movie, and when they are finished with a particular part of the movie that they are filming, the person who is the leader - the director of the movie may say, "That's a wrap," meaning "we're done for now, everyone can relax."
Finally, Alex thanks everyone for their attention and says, "See you on Tuesday," which is an informal way of saying "I will see everyone here next Tuesday."