add more badges at the top of readme
add check for time taken to kill children
merge checking stdout and stderr steps
implement interrupt twice step using calls to interrupt step
use "child process" instead of "inner process"
set default child should terminate timeout to 5 instead of 100 seconds
check no "Waiting ^C …" after "Don't restart!"
add on-restart action and command option
remove TODO

auto restart after finishing seems out of scope