CVS-163914_export_models_update_help_output (#3115)

Author: ngrozae

demos/common/export_models/README.md

@@ -31,6 +31,7 @@ usage: export_model.py text_generation [-h]
                                        [--config_file_path CONFIG_FILE_PATH]
                                        [--overwrite_models]
                                        [--target_device TARGET_DEVICE]
+                                       [--pipeline_type PIPELINE_TYPE]
                                        [--kv_cache_precision {u8}]
                                        [--enable_prefix_caching]
                                        [--disable_dynamic_split_fuse]
@@ -58,6 +59,9 @@ options:
                         repository
   --target_device TARGET_DEVICE
                         CPU or GPU, default is CPU
+  --pipeline_type PIPELINE_TYPE
+                        Type of the pipeline to be used. Can be either
+                        CONTINUOUS_BATCHING or VISUAL_LANGUAGE_MODEL.
   --kv_cache_precision {u8}
                         u8 or empty (model default). Reduced kv cache
                         precision to u8 lowers the cache size consumption.