Update ping pong charm

Signed-off-by: Philip Joseph <philip.joseph@riftio.com>
diff --git a/layers/pingpong/actions.yaml b/layers/pingpong/actions.yaml
index f283ed0..a5928f1 100644
--- a/layers/pingpong/actions.yaml
+++ b/layers/pingpong/actions.yaml
@@ -26,7 +26,7 @@
     description: "Get the rate set on the target service."
 get-server:
     description: "Get the target server and IP set"
-start-ping:
-    description: "Start the traffic generator."
-stop-ping:
-    description: "Stop the traffic generator."
+start-traffic:
+    description: "Start the traffic generator or echo."
+stop-traffic:
+    description: "Stop the traffic generator or echo."