update model card README.md

README.md

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 ---
-license: mit
+license: apache-2.0
 tags:
 - generated_from_trainer
 model-index:
@@ -12,7 +12,7 @@ should probably proofread and complete it, then remove this comment. -->
 
 # bart-large-chatgpt-summary-peft5
 
-This model is a fine-tuned version of [facebook/bart-large-cnn](https://huggingface.co/facebook/bart-large-cnn) on an unknown dataset.
+This model is a fine-tuned version of [facebook/bart-base](https://huggingface.co/facebook/bart-base) on an unknown dataset.
 
 ## Model description