Update app.py to include accelerate repo

### What does this PR do?
1. Adds `accelerate` repo to the list of the 🤗 libraries

app.py

@@ -22,7 +22,7 @@ with gr.Blocks() as demo:
     See live download stats for all of Hugging Face's open-source libraries 🤗
     """)
     with gr.Row():
-        lib = gr.Dropdown(["transformers", "datasets", "huggingface-hub", "gradio"], label="Library")
+        lib = gr.Dropdown(["transformers", "datasets", "huggingface-hub", "gradio", "accelerate"], label="Library")
         time = gr.Dropdown(["3 months", "6 months", "9 months", "12 months"], label="Downloads over the last...")
 
     plt = gr.Plot()