fix typo

app.py

@@ -264,9 +264,9 @@ The ROOTS corpus was developed during the [BigScience workshop](https://bigscien
 of training the Multilingual Large Language Model [BLOOM](https://huggingface.co/bigscience/bloom). The ROOTS Search
 Tool allows you to search through the ROOTS corpus. We serve a BM25 index for each language or group of languages
 included in ROOTS. We also offer exact search which is enabled if you enclose your query in double quotes. More details
-about the implementation and use cses is available in our [paper](https://arxiv.org/abs/2302.14035) - please cite it if
-you use ROOTS Search Tool in your work. For more information and instructions on how to access the full corpus consult
-[this form](https://forms.gle/qyYswbEL5kA23Wu99)."""
+about the implementation and use cases is available in our [paper](https://arxiv.org/abs/2302.14035) - please cite it
+if you use ROOTS Search Tool in your work. For more information and instructions on how to access the full corpus
+consult [this form](https://forms.gle/qyYswbEL5kA23Wu99)."""
 
 
 if __name__ == "__main__":