Update app.py

app.py

@@ -149,7 +149,7 @@ description = """<strong>Overview:</strong> Reasoning application that demonstra
                  AI-native <a href='https://www.trychroma.com/'>Chroma</a> embedding database, and alternatively 
                  <a href='https://www.mongodb.com/blog/post/introducing-atlas-vector-search-build-intelligent-applications-semantic-search-ai'>MongoDB</a> vector search. 
                  Speech-to-text (STT) via OpenAI <a href='https://openai.com/research/whisper'>whisper-1</a> model. 
-                 Embeddings via OpenAI <a href='https://openai.com/blog/new-and-improved-embedding-model'>text-embedding-ada-002 model</a>. 
+                 Embeddings via OpenAI <a href='https://openai.com/blog/new-and-improved-embedding-model'>text-embedding-ada-002</a> model. 
                  Reasoning via OpenAI <a href='""" + WEB_URL + """'>gpt-4</a> model. 
                  Implementation via AI-first <a href='https://www.langchain.com/'>LangChain</a> toolkit. In addition to the OpenAI API version, see also the 
                  <a href='https://aws.amazon.com/bedrock/'>Amazon Bedrock</a> API and <a href='https://cloud.google.com/vertex-ai'>Google Vertex AI</a> API versions on