[FIX] fix typo

README.md

@@ -79,7 +79,7 @@ In the MNIST Addition task, the data loading looks like:
 # The 'datasets' module below is located in 'examples/mnist_add/'
 from datasets import get_dataset
     
-# train_data and test_data are tuples in the format (X, gt_pseudo_label, Y)
+# train_data and test_data are tuples in the format of (X, gt_pseudo_label, Y)
 train_data = get_dataset(train=True)
 test_data = get_dataset(train=False)
 ```

docs/Intro/Quick-Start.rst

@@ -24,7 +24,7 @@ In the MNIST Addition task, the data loading looks like
    # The 'datasets' module below is located in 'examples/mnist_add/'
    from datasets import get_dataset
    
-   # train_data and test_data are tuples in the format (X, gt_pseudo_label, Y)
+   # train_data and test_data are tuples in the format of (X, gt_pseudo_label, Y)
    train_data = get_dataset(train=True)
    test_data = get_dataset(train=False)