docs: Improve documentation of i2c_software_scl_pin/i2c_software_sda_pin

Reported by @rootiest

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 7 insertions, 8 deletions

diff --git a/docs/Config_Reference.md b/docs/Config_Reference.md
index fa770408..e16007fe 100644
--- a/docs/Config_Reference.md
+++ b/docs/Config_Reference.md
@@ -4343,12 +4343,6 @@ i2c_address:
 #i2c_speed:
 #   See the "common I2C settings" section for a description of the
 #   above parameters.
-#i2c_bus:
-#i2c_software_scl_pin:
-#i2c_software_sda_pin:
-#   If the I2C implementation of your micro-controller supports
-#   multiple I2C busses, you may specify the bus name here. The
-#   default is to use the default micro-controller i2c bus.
 ```
 
 ### [samd_sercom]
@@ -4595,11 +4589,16 @@ via the `i2c_speed` parameter. All other Klipper micro-controllers use a
 #   The name of the micro-controller that the chip is connected to.
 #   The default is "mcu".
 #i2c_bus:
-#i2c_software_scl_pin:
-#i2c_software_sda_pin:
 #   If the micro-controller supports multiple I2C busses then one may
 #   specify the micro-controller bus name here. The default depends on
 #   the type of micro-controller.
+#i2c_software_scl_pin:
+#i2c_software_sda_pin:
+#   Specify these parameters to use micro-controller software based
+#   I2C "bit-banging" support. The two parameters should the two pins
+#   on the micro-controller to use for the scl and sda wires. The
+#   default is to use hardware based I2C support as specified by the
+#   i2c_bus parameter.
 #i2c_speed:
 #   The I2C speed (in Hz) to use when communicating with the device.
 #   The Klipper implementation on most micro-controllers is hard-coded