Fix: Add missing model path definition in example code

README.md

@@ -25,8 +25,12 @@ This sentiment analysis model has been integrated into [TweetNLP](https://github
 ## Example Pipeline
 ```python
 from transformers import pipeline
+
+model_path = "cardiffnlp/twitter-roberta-base-sentiment-latest"
 sentiment_task = pipeline("sentiment-analysis", model=model_path, tokenizer=model_path)
 sentiment_task("Covid cases are increasing fast!")
+
+print(result)
 ```
 ```
 [{'label': 'Negative', 'score': 0.7236}]