One more

docs/getting_started/SDKBasics.md

@@ -44,10 +44,10 @@ makes your device your device. Most are generated statically using zap.
 
 The cluster implementations are the logic that back the cluster. The cluster
 implementation code receives messages from the ember layer to request data model
-operations on the cluster (reads / writes / commands). They are also responsible
-for event generation and attribute change reporting. Simple cluster logic can be
-written in the ember callback functions, but more complex cluster logic is
-handled in the run-time installed interface layers.
+operations on the cluster (reads / writes / command invokes). They are also
+responsible for event generation and attribute change reporting. Simple cluster
+logic can be written in the ember callback functions, but more complex cluster
+logic is handled in the run-time installed interface layers.
 
 ## SDK Organization (some key bits)