message: Update example north.toml in Readme
diff: @@ -139,14 +139,21 @@ choice. The configuration of the runtime is done with a `*.toml` configuration f
  Here is an example:
  ```toml
  +debug = true
  +console_address = "localhost:4200"
  +global_data_dir = false
  +container_uid = 1000
  +container_gid = 1000
  +
  [directories]
  container_dirs = [ "target/north/registry" ]
  run_dir = "target/north/run"
  data_dir = "target/north/data"
  +key_dir = "examples/keys"
  [cgroups]
  -memory = "/sys/fs/cgroup/memory/north"
  -cpu = "/sys/fs/cgroup/cpu/north"
  +memory = "north"
  +cpu = "north"
  [devices]
  unshare_root = "/"
  