updating model card

README.md

@@ -87,6 +87,10 @@ classification_pipeline("There are a lot of spelling mistakes and references tha
 # prediction for an example review sentence not addressing negative statement
 classification_pipeline("There are currently several activities on an international level that have identified the issue and activities are underway.")
 ```
+## Model Limitations
+- *Human Assessment Required*: This model should not be used for automatic classification of grant peer review reports without human oversight.
+- *Limited Training Data*: The model was fine-tuned on a limited sample of 2,500 annotated sentences. Therefore, its classification accuracy should be critically evaluated before deployment.
+- *Specific Training Data*: The training data consists of a random sample of SNSF grant peer review reports. As such, the model's external validity to other datasets may be limited.
 
 ## Citation