Clarify and Correct Errors in Sentence on Line 24 in app.py

app.py

@@ -21,7 +21,7 @@ To use it, upload your prompt and set the compression target.
 
 You can check our [project page](https://llmlingua.com/)!
 
-We also has a work to compress long context scenories, using less cost but even improve the downstream performance, LongLLMLingua.<br>
+We also have a project aimed at compressing long context scenarios, which reduces costs while still improving downstream performance, LongLLMLingua.<br>
 [LongLLMLingua: Accelerating and Enhancing LLMs in Long Context Scenarios via Prompt Compression](https://arxiv.org/abs/2310.06839) (Under Review).<br>
 
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