Fix use of old settings in sample config, see #16.

doc/linux/services/early-filesystems

@@ -3,4 +3,4 @@
 type = scripted
 command = /etc/dinit.d/early-filesystems.sh start
 restart = false
-onstart = rw_ready
+options = starts-rwfs

doc/linux/services/rootrw

@@ -3,7 +3,7 @@
 type = scripted
 command = /bin/mount -n -o remount,rw /
 restart = false
-onstart = rw_ready
+options = starts-rwfs
 logfile = /run/rootrw.log
 
 depends-on = early-filesystems