1994 Renault 5 Low cooling fluid, then car won't start

Engine Cooling problem
1994 Renault 5 Manual 97000 miles

My cooling temp light came on, I drove on for a bit til I could stop. Steam was coming from the bonnet and the exhaust pipe. When cooled down, the cooling level was on the Min line. I filled it up, but then my engine wouldn't start and when I looked again, the level had dropped again.