Update app.py

app.py

@@ -82,7 +82,7 @@ def invoke(openai_api_key, use_rag, prompt):
     return result
 
 description = """<strong>Overview:</strong> The app demonstrates how to use a <strong>Large Language Model (LLM)</strong> with <strong>Retrieval Augmented Generation (RAG)</strong> 
-                 on <strong>external data<strong> (private/public & structured/unstructured).\n\n
+                 on <strong>external data</strong> (private/public & structured/unstructured).\n\n
                  <strong>Instructions:</strong> Enter an OpenAI API key and perform LLM use cases (semantic search, summarization, translation, etc.) on 
                  <a href='""" + YOUTUBE_URL_1 + """'>YouTube</a>, <a href='""" + PDF_URL + """'>PDF</a>, and <a href='""" + WEB_URL + """'>Web</a> 
                  <strong>data about GPT-4</strong> (created after training cutoff).