Update app.py

Signed-off-by: SimJeg <sjegou@nvidia.com>

app.py

@@ -63,6 +63,7 @@ def gradio_interface():
             # Wikipedia Article Question Answering with kvpress
             This demo uses the llama 3.1 8B Instruct model to answer questions about any given Wikipedia article.  
             Under the hood, [kvpress](https://github.com/NVIDIA/kvpress) *compresses the key-value (KV) cache* associated with the article, helping reduce memory usage and accelerate decoding.
+
             **How to use:**
             1. Enter a Wikipedia article URL 
             2. Type your question