Fix code example

README.md

@@ -39,8 +39,8 @@ The model is mostly meant to be fine-tuned on a supervised dataset. See the [mod
 ```python
 from transformers import AutoTokenizer, LongT5Model
 
-tokenizer = AutoTokenizer.from_pretrained("google/longt5-tglobal-large")
-model = LongT5Model.from_pretrained("google/longt5-tglobal-large")
+tokenizer = AutoTokenizer.from_pretrained("google/long-t5-tglobal-large")
+model = LongT5Model.from_pretrained("google/long-t5-tglobal-large")
 
 inputs = tokenizer("Hello, my dog is cute", return_tensors="pt")
 outputs = model(**inputs)