[Keymap+] SnailMap port for the Kintsugi keyboard. (#17341)

keyboards/adpenrose/kintsugi/keymaps/snailmap_port/readme.md

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+# SnailMap-ported keymap for the Kintsugi
+
+## Features
+
+- Keyboard matrix that highlights whichever key is currently pressed.
+- Little cute snail icon that changes acording to the current WPM.
+- Counters for current and max WPM values.
+- Active layer name.
+- Mini WPM graph.
+
+## How to customize
+
+The `OLED configuration variables` can be used to easily customize the display:
+
+```
+oled_horizontal     - Horizontal or vertical orientation
+graph_direction     - Graph movement direction
+graph_refresh       - Frequency of graph lines
+graph_top_wpm       - WPM required to reach the top of the graph
+icon_med_wpm        - WPM required to display the medium snail
+icon_fast_wpm       - WPM required to display the fast snail
+MA_LAYER_NAME       - Layer 0 display name
+L1_LAYER_NAME       - Layer 1 display name
+L2_LAYER_NAME       - Layer 2 display name
+L3_LAYER_NAME       - Layer 3 display name
+```
+
+___
+
+###### *This keymap is an adaptation designed to work with the Kintsugi keyboard. The original SnailMap keymap was created by [dogspace](https://github.com/dogspace) for the Nibble keyboard, and you can check it [here](https://github.com/qmk/qmk_firmware/tree/master/keyboards/nullbitsco/nibble/keymaps/snailmap).*