Correct ramps call syntax in README.md

Correct ramps call syntax in README.md.

BUG-AGL: SPEC-2683

Change-Id: Ib580a3dc7c681949c542f8dec1eb97fd14e9088a
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>

1 files changed, 2 insertions, 2 deletions

diff --git a/README.md b/README.md
index b9b91f9..d044d8b 100644
--- a/README.md
+++ b/README.md
@@ -490,11 +490,11 @@ $HAL_API_NAME $SELECTED_STREAM { "volume" : 70 }
 ```
 
 ```bash
-$HAL_API_NAME $SELECTED_STREAM { "ramp" : "-10" }
+$HAL_API_NAME $SELECTED_STREAM { "ramp" : { "uid" : $RAMP_UID, "volume" : "-10" } }
 ```
 
 ```bash
-$HAL_API_NAME $SELECTED_STREAM { "ramp" : 100 }
+$HAL_API_NAME $SELECTED_STREAM { "ramp" : { "uid" : $RAMP_UID, "volume" : 100 } }
 ```
 
 Example :