how do i add the file server command to my config.yaml

i am using wimdows10 using cli to start and open tunnels. i want to add the file server command to my confi.yaml file. when i copy and pate the line in and edit it for my needs the comfig file wont run.

if i just start loclx with the file server line it works.

how do i get it to run automaricly in my config file?