chore: Update max_tokens range for generating blurb

app.py

@@ -133,7 +133,7 @@ def get_and_store_prompt():
 def generate_blurb(prompt):
     model_id = get_random_model()
     client = create_client(model_id)
-    max_tokens = random.randint(100, 1000)
+    max_tokens = random.randint(500, 1000)
     chat_completion = client.chat.completions.create(
         model="tgi",
         messages=[