Update app.py

app.py

@@ -151,7 +151,7 @@ description = """<strong>Overview:</strong> Reasoning application that demonstra
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                  <strong>Technology:</strong> <a href='https://www.gradio.app/'>Gradio</a> UI using the <a href='https://openai.com/'>OpenAI</a> API and 
-                 AI-native <a href='https://www.trychroma.com/'>Chroma</a> embedding database / 
+                 AI-native <a href='https://www.trychroma.com/'>Chroma</a> embedding database or 
                  <a href='https://www.mongodb.com/blog/post/introducing-atlas-vector-search-build-intelligent-applications-semantic-search-ai'>MongoDB</a> vector search. 
                  <strong>Speech-to-text</strong> via <a href='https://openai.com/research/whisper'>whisper-1</a> model, <strong>text embedding</strong> via 
                  <a href='https://openai.com/blog/new-and-improved-embedding-model'>text-embedding-ada-002</a> model, and <strong>text generation</strong> via