added content to welcome message in app

app.py

@@ -163,7 +163,7 @@ The dataset powering this application is available on HuggingFace Datasets, link
 
 To learn more about how this dataset and the USDA Food Assistant were created, check out the blog post, linked [here](https://jacktol.net/posts/building_a_data_pipeline_for_usda_fooddata_central/).
 
-The full code for the data pipeline and the assistant can be found on GitHub, linked [here](https://github.com/jack-tol/usda-food-assistant).
+The full code for the data pipeline and the assistant can be found on GitHub, linked [here](https://github.com/jack-tol/usda-food-data-pipeline).
 
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