Update README.md

README.md

@@ -53,11 +53,12 @@ This must be used for classification of x-ray images of the brain to diagnose of
 
 The model was fine-tuned in the dataset [Mahadih534/brain-tumor-dataset](https://huggingface.co/datasets/Mahadih534/brain-tumor-dataset) that contains 253 brain images. This dataset was originally created by Yousef Ghanem.
 
+The original dataset was splitted into training and evaluation subsets, 80% for training and 20% for evaluation. 
+For  robust framework evaluation, the evaluation subset is further split into two equal parts for validation and testing. 
+This results in three distinct datasets: training, validation, and testing
 
-## Training procedure
-The model was fine-tuned 
 
-### Training hyperparameters
+### Training procedure/hyperparameters
 
 The following hyperparameters were used during training:
 - learning_rate: 0.0003