Added docs, and removed some old, not needed docs

docs/split_keyboards.md

@@ -8,12 +8,6 @@ keyboard.split_flip = True  # If your boards are identical but one is flipped, t
 keyboard.split_offsets = [6, 6, 6, 6]  # This is the how many keys are on each column on the "Master" half
 ```
 
-## Master Half
-Choosing the master half can be done one of 2 ways. You can set this true or false if you only pleg in on one side.
-```python
-keyboard.split_master_left = True
-```
-
 ## EE HANDS
 If you want to plug in on either side, it can be done fairly easily but requires setup. 
 
@@ -34,5 +28,5 @@ from kmk_side import split_side
 To enable uart it's as simple as adding this line, of course changing the pin
 ```python
 keyboard.split_type = "UART"
-keyboard.uart = keyboard.init_uart(tx=board.SCL)
+keyboard.uart_pin = board.SCL
 ```

kmk/firmware.py

@@ -147,7 +147,6 @@ class Firmware:
         assert self.col_pins, 'no GPIO pins defined for matrix columns'
         assert self.diode_orientation is not None, 'diode orientation must be defined'
 
-
         # Split keyboard Init
         if self.split_flip and not self._master_half():
             self.col_pins = list(reversed(self.col_pins))

user_keymaps/kdb424/nyquist_converter.py

@@ -24,7 +24,7 @@ keyboard.uart = keyboard.init_uart(tx=board.SDA, rx=board.SCL)
 
 # ------------------User level config variables ---------------------------------------
 keyboard.leader_mode = LeaderMode.TIMEOUT
-keyboard.unicode_mode = UnicodeModes.LINUX
+keyboard.unicode_mode = UnicodeMode.LINUX
 keyboard.tap_time = 150
 keyboard.leader_timeout = 2000
 keyboard.debug_enabled = True