Update README.md

boards/dactyl_manuform_carbonfet/README.md

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 # Dactyl ManuForm Carbonfet
-
 The [Dactyl ManuForm Carbonfet](https://github.com/carbonfet/dactyl-manuform) is a handwired, split bodied, tented, curved key-well keyboard.  
 Forked from the [Dactyl ManuForm Mini](/boards/dactyl_manuform_mini), the Dactyl ManuForm Carbonfet appends the 5 key thumb cluster of the former with an additional key into a 2 row by 3 column arrangement.
 
 ![White](https://i.imgur.com/0ugz1C9.jpg)  
 *Dactyl Manuform Carbonfet 5x6 variant*
 
 ## Variants
-
 Dactyl Manuform Carbonfets are built in variations that cater for different row and column counts.  
 Variants are denoted as `RowCount`*x*`ColumnCount` and share the common configuration of:
 - The finger key-well bottom row has 2 keys; 1 each in ring and middle columns.
    Exception to this rule is the `5x7` variant that has two additional keys in this row.
 - The thumb cluster has 5 keys: 2 (row) x 3 (column) arrangement with bottom left position ommited for left half, this arrangment mirrored for right half.
 
 ### Row
-| Count | Description |
-| :---: | :--- |
-| 4 | Three rows, typically for alphabet and some punctuation characters, with two keys in bottom row of finger key-well section |
-| 5 | As *4 rows* with number row above |
-| 6 | As *5 rows* with function row above |
+| Count | Description                                                                                                                |
+| ----- | -------------------------------------------------------------------------------------------------------------------------- |
+|     4 | Three rows, typically for alphabet and some punctuation characters, with two keys in bottom row of finger key-well section |
+|     5 | As *4 rows* with number row above                                                                                          |
+|     6 | As *5 rows* with function row above                                                                                        |
 
 ### Column
-| Count | Description |
-| :---: | :--- |
-| 5 | A column for each finger with additional index finger column |  
-| 6 | As *5 columns* with additional pinky finger column |
-| 7 | As *6 columns* with either an additional index finger column (`5x7`) or additional pinky column (`6x7`) |
+| Count | Description                                                                                             |
+| ----- | ------------------------------------------------------------------------------------------------------- |
+|     5 | A column for each finger with additional index finger column                                            |
+|     6 | As *5 columns* with additional pinky finger column                                                      |
+|     7 | As *6 columns* with either an additional index finger column (`5x7`) or additional pinky column (`6x7`) |
 
 ## Extended Bottom Row
-
 Further to this board's customisable ethos, the bottom row of the finger key-well can be extended, outward, from the default two keys.
 
 *Note: This does not apply to the `5x7` variant, as its bottom row is already extended*
 
 To accomodate this, in files of chosen variant:
-### `kb.py`  
+
+### `kb.py`
 `coord_mapping` element: Populate the extended row positions with numbers that continue numerical pattern of each half.  
 e.g. in the case of `4x6` variant:
 - `18, 19,` positions would be placed left of `20,` position.
@@ -45,13 +43,11 @@ e.g. in the case of `4x6` variant:
 `keyboard.keymap` element: For each layer, append with keycodes in the respective extended bottom row positions.
 
 ## KMk Specifics
-
 Extentions enabled by default:  
 - [Layers](/docs/en/layers.md)
 - [Split](/docs/en/split_keyboards.md): Configured to 1-wire UART to match legacy configuration. Please see documentation for enabling 2-wire UART or, for capable controllers, Bluetooth.
 
 ## Microcontroller support
-
 Replace `boardsource_blok` in variant's `kb.py` to a supported microcontroller in `kmk/quickpin/pro_micro`:
 
 ```python