[bme280] Update configuration variables list (#4226)

components/sensor/bme280.rst

@@ -66,13 +66,22 @@ Configuration variables:
     See :ref:`Oversampling Options <bme280-oversampling>`.
   - All other options from :ref:`Sensor <config-sensor>`.
 
-- **address** (*Optional*, int): Manually specify the I²C address of
-  the sensor. Defaults to ``0x77``. Another address can be ``0x76``.
 - **iir_filter** (*Optional*): Set up an Infinite Impulse Response filter to increase accuracy. One of
   ``OFF``, ``2x``, ``4x``, ``16x``. Defaults to ``OFF``.
 - **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
   sensor. Defaults to ``60s``.
 
+
+I²C Configuration variables:
+
+- **address** (*Optional*, int): Manually specify the I²C address of
+  the sensor. Defaults to ``0x77``. Another address can be ``0x76``.
+
+SPI Configuration variables:
+
+- **cs_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The CS pin of the BME280 sensor.
+
+
 .. _bme280-oversampling:
 
 Oversampling Options