Update app.py

app.py

@@ -15,8 +15,8 @@ def get_stock_signal(symbol: str, interval: str) -> str:
     Retrieves intraday stock data for the given symbol using the Alpha Vantage API, computes exponential moving averages (EMA),
     and generates a trading signal based on an EMA crossover strategy.
     Args:
-        symbol (str): Stock symbol to analyze (e.g., "AAPL", "GOOG", "MSFT", "TSLA").
-        interval (str): Time interval between data points (e.g., "1min", "5min", "15min", "60min").
+        symbol: A string representing the stock symbol to analyze (e.g., "AAPL", "GOOG", "MSFT", "TSLA").
+        interval: A string representing the time interval between data points (e.g., "1min", "5min", "15min", "60min").
     """
     API_KEY = 'RG9XKRIYBL2EV3V3'