Update README.rst

Fixes Issue #36 (#36)

Author: JanHBade

README.rst

@@ -68,6 +68,8 @@ Usage Example
     # Create library object using our Bus I2C port
     i2c = busio.I2C(board.SCL, board.SDA)
     bme280 = adafruit_bme280.Adafruit_BME280_I2C(i2c)
+    #or with other sensoe address
+    bme280 = adafruit_bme280.Adafruit_BME280_I2C(i2c, address=0x76)
 
     # OR create library object using our Bus SPI port
     #spi = busio.SPI(board.SCK, board.MOSI, board.MISO)