Corrected filenames and typos

[Kirushikesh]

I have made a few changes to address the typos present and intentionally changed the filenames in the datasets.ipynb because the dataset ID used previously is "452ccafc-18e1-4314-885b-edd735f17b9d." However, as mentioned in #215, this dataset doesn't contain the intermediate results output element, which is essential for the evaluation. Therefore, I am using a different dataset_id, which gives all the elements in the ground truth output key.