added chdir/chroot commands to init for mount switching/pivoting
diff --git a/init/readme.txt b/init/readme.txt
index 665090b..a185790 100644
--- a/init/readme.txt
+++ b/init/readme.txt
@@ -145,12 +145,18 @@
 hostname <name>
    Set the host name.
 
+chdir <directory>
+   Change working directory.
+
 chmod <octal-mode> <path>
    Change file access permissions.
 
 chown <owner> <group> <path>
    Change file owner and group.
 
+chroot <directory>
+  Change process root directory.
+
 class_start <serviceclass>
    Start all services of the specified class if they are
    not already running.