Update README.md for new metadata keys.

Update README accordingly to new metadata keys.
These keys was added in the commit :
'Handle more metadata in the controller'.

Change-Id: Icdee5bdf4a6cf0d8b8bd5dde4adc3bbf04653a50
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>

1 files changed, 2 insertions, 0 deletions

diff --git a/README.md b/README.md
index e305197..a6b8f19 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,8 @@ As today matadata is only used for documentation purpose.
 * **api**: mandatory
 * **info**: optional
 * **require**: optional
+* **author**: optional
+* **date**: optional
 
 ### OnLoad section