Update app.py

app.py

@@ -3,7 +3,7 @@ from transformers import pipeline
 import difflib
 
 # Use a solid grammar correction + improvement model
-pipe = pipeline("text2text-generation", model="pszemraj/flan-t5-base-grammar-synthesis")
+pipe = pipeline("text2text-generation", model="pszemraj/flan-t5-large-grammar-synthesis")
 
 def respond(prompt):
     # Generate revised essay