Update app.py

app.py

@@ -177,19 +177,4 @@ To get an API key, visit [api.nasa.gov](https://api.nasa.gov).
 
 st.sidebar.markdown("---")
 st.sidebar.markdown("""
-### Deployment Instructions
-1. Save this code as `app.py`
-2. Create `requirements.txt` with:
-   ```
-   streamlit
-   requests
-   pandas
-   plotly
-   python-dotenv
-   ```
-3. Add `.env` file with:
-   ```
-   NASA_API_KEY=your_key_here
-   ```
-4. Deploy to Streamlit Cloud or similar
-""")
+