docs: modes field isn't required anymore

README.md

@@ -151,7 +151,7 @@ Reactive has following commands you can use:
 
 ### Preset Spec
 
-Only 2 fields are required: `name` and `modes`.
+The `name` field is required.
 
 | Property  | Type                                                                  | Description                                                                                                                                                                                                                                                                             |
 |-----------|-----------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|