Update README.md

Change to text-generation text2text-generation for run pipeline correctly.

README.md

@@ -72,7 +72,7 @@ print(generated_title)
 
 
 # Create a text generation pipeline
-title_generation_pipeline = pipeline("text-generation", model="NLPclass/mt5-title-generation")
+title_generation_pipeline = pipeline("text2text-generation", model="NLPclass/mt5-title-generation")
 generated_title = title_generation_pipeline(input_text, max_length=50, num_beams=5, early_stopping=True)
 print(generated_title)