README: add cmd directory description

All of the command files have moved to cmd directory, add description to
Directory Hierarchy.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/README b/README
index 30d7ee3970cd096d5e713084eb3b3bc4ef69b779..f41a6afc341d985cc824b262d8ffbecd1b7f8845 100644 (file)
--- a/README
+++ b/README
@@ -151,6 +151,7 @@ Directory Hierarchy:
   /x86                 Files generic to x86 architecture
 /api                   Machine/arch independent API for external apps
 /board                 Board dependent files
+/cmd                   U-Boot commands functions
 /common                        Misc architecture independent functions
 /configs               Board default configuration files
 /disk                  Code for disk drive partition handling