small description fix

Author: artek0chumak

openapi.yaml

@@ -1241,7 +1241,7 @@ paths:
                   description: The Hugging Face Hub repo to start training from. Should be as close as possible to the base model (specified by the `model` argument) in terms of architecture and size.
                 hf_model_revision:
                   type: string
-                  description: The revision of the Hugging Face Hub model to continue training from. E.g., hf_model_revision=main (default) or hf_model_revision='607a30d783dfa663caf39e06633721c8d4cfcd7e' (specific commit).
+                  description: The revision of the Hugging Face Hub model to continue training from. E.g., hf_model_revision=main (default, used if the argument is not provided) or hf_model_revision='607a30d783dfa663caf39e06633721c8d4cfcd7e' (specific commit).
                 hf_api_token:
                   type: string
                   description: The API token for the Hugging Face Hub.