corrected overlay

src/en/overlay/sense-hat.md

@@ -14,38 +14,18 @@ pin:
     mode: i2c
   '5':
     mode: i2c
-  '16':
-    name: Joystick
-    mode: input
-  '18':
-    name: Joystick
-    mode: input
-  '19':
-    mode: spi
-  '21':
-    mode: spi
-  '22':
-    name: Joystick
-    mode: input
-  '23':
-    mode: spi
-  '24':
-    mode: spi
 install:
   'devices':
     - 'i2c'
-    - 'spi'
 -->
 #Sense HAT
 
-The Sense HAT is an add-on board for Raspberry Pi comprising of a 8×8 RGB LED matrix, a five-button joystick and the following sensors:
+The Sense HAT is an add-on board for Raspberry Pi comprising of a 8×8 RGB LED matrix, a five-button joystick and the following sensors: Gyroscope, Accelerometer, Magnetometer, Temperature, Barometric pressure and Humidity.
 
-Gyroscope, Accelerometer, Magnetometer, Temperature, Barometric pressure and Humidity.
+The shift register driving the LED Matrix is a LED2472G connected via an ATTINY88 communicating via i2c at address 0x46 with the Pi. The Multi-Directional SKRHABE010 Switch/Joystick is similarly controlled.
 
-The shift register driving the LED Matrix is a LED2472G connected via an ATTINY88 to the SPI bus of the Pi. The Multi-Directional SKRHABE010 Switch/Joystick is similarly connected to the SPI bus.
-
-The sensors themselves operate (mostly) over the i2c bus:
+The sensors themselves also operate over the i2c bus:
 
 The IMU (Gyroscope, Accelerometer, Magnetometer) through a LSM9DS1 found at i2c address 0x1c(0x1e),0x6a(0x6b), with Interrupts on the ATTINY88.
 
-Environemental sensors are represented by a LPS25H Pressure+Temperature sensor at address 0x5c and by a HTS221 Humidity+Temp sensor at 0x5f on the i2c bus.
+Environmental sensors are represented by a LPS25H Pressure+Temperature sensor at address 0x5c and by a HTS221 Humidity+Temp sensor at 0x5f on the i2c bus.