[Doc Fix] Fix model name path in the transformers doc for AutoClasses (#24329)

fix model name path
Co-authored-by: Ritesh Ghorse <riteshghorse@Riteshs-Air.attlocal.net>

docs/source/en/tasks/masked_language_modeling.mdx

@@ -376,7 +376,7 @@ Tokenize the text and return the `input_ids` as PyTorch tensors. You'll also nee
 ```py
 >>> from transformers import AutoTokenizer
 
->>> tokenizer = AutoTokenizer.from_pretrained("my_awesome_eli5_mlm_model")
+>>> tokenizer = AutoTokenizer.from_pretrained("stevhliu/my_awesome_eli5_mlm_model")
 >>> inputs = tokenizer(text, return_tensors="pt")
 >>> mask_token_index = torch.where(inputs["input_ids"] == tokenizer.mask_token_id)[1]
 ```
@@ -409,7 +409,7 @@ Tokenize the text and return the `input_ids` as TensorFlow tensors. You'll also
 ```py
 >>> from transformers import AutoTokenizer
 
->>> tokenizer = AutoTokenizer.from_pretrained("my_awesome_eli5_mlm_model")
+>>> tokenizer = AutoTokenizer.from_pretrained("stevhliu/my_awesome_eli5_mlm_model")
 >>> inputs = tokenizer(text, return_tensors="tf")
 >>> mask_token_index = tf.where(inputs["input_ids"] == tokenizer.mask_token_id)[0, 1]
 ```