update conf

nohang.conf

@@ -85,8 +85,9 @@ ignore_psi = True
     psi_path = /sys/fs/cgroup/unified/system.slice/foo.service/memory.pressure
 
     Execute the command
-    find /sys/fs/cgroup | grep -P "memory\.pressure$"
+    find /sys/fs/cgroup -name memory.pressure
     to find available memory.pressue files (except /proc/pressure/memory).
+    (actual for cgroup2)
 
 psi_path = /proc/pressure/memory