Unable to bring back online secondary replica

Greetings!!! I am working m312 course. As part of this course I did shutdown secondary replica using db.shutdownServer(). It is three node replica set as below

It is on Vagrant virtualbox.
Below command was used to create replica set
mlaunch init --name TIMEOUTS --replicaset --node 3 --dir timeouts --port 27000

Once I shutdown secondary replica , I am not sure how to bring it back

Can any one please guide or help me

Thanks

I think you have to use mlaunch start with appropriate flag
Please check mlaunch commands for exact syntax from the GitHub link available in our forum threads