Fixed spdx comment

Author: evaherrada

Wearable_BLE_Temperature_Monitor/ble_temp_monitor.ino

@@ -1,6 +1,6 @@
-# SPDX-FileCopyrightText: 2020 Brent Rubell for Adafruit Industries
-#
-# SPDX-License-Identifier: MIT
+// SPDX-FileCopyrightText: 2020 Brent Rubell for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
 
 /*********************************************************************
  Learn Guide: BLE Temperature Monitoring Armband
@@ -219,4 +219,4 @@ void disconnect_callback(uint16_t conn_handle, uint8_t reason)
 
   Serial.println();
   Serial.print("Disconnected, reason = 0x"); Serial.println(reason, HEX);
-}
+}