Update app.py

app.py

@@ -274,6 +274,7 @@ def main():
             # Introduction
             
             This app builds a [retrieval-augmented generation](https://en.wikipedia.org/wiki/Retrieval-augmented_generation) model that let's you ask "talk" to your document, ask questions, summarize, and extract data.
+            
             :clap: The workflow relies on:
             * [OpenAI](https://platform.openai.com/apps)
             * [LlamaParse](https://cloud.llamaindex.ai/)