[Keymap] dohmain 60_tsangan_hhkb layout (#9157)

* initial commit for tsangan_hhkb community layout

* keymap.c done

* wrote readme

* move media keys; add shortcuts

* edit to reflect changes in keymap

* update readme with imgur link

layouts/community/60_tsangan_hhkb/dohmain/keymap.c

@@ -0,0 +1,43 @@
+#include QMK_KEYBOARD_H
+
+enum layer {
+    QWERTY,
+    COLEMAK,
+    FUNCTION,
+    ADJUST,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [QWERTY] = LAYOUT_60_tsangan_hhkb(
+        KC_ESC,   KC_1,     KC_2,     KC_3,     KC_4,     KC_5,     KC_6,     KC_7,     KC_8,     KC_9,     KC_0,     KC_MINS,  KC_EQL,   KC_BSLS, KC_GRV,
+        KC_TAB,   KC_Q,     KC_W,     KC_E,     KC_R,     KC_T,     KC_Y,     KC_U,     KC_I,     KC_O,     KC_P,     KC_LBRC,  KC_RBRC,  KC_BSPC,
+        LT(2, KC_CAPS),     KC_A,     KC_S,     KC_D,     KC_F,     KC_G,     KC_H,     KC_J,     KC_K,     KC_L,     KC_SCLN,  KC_QUOT,  LT(2,KC_ENT),
+        KC_LSPO,            KC_Z,     KC_X,     KC_C,     KC_V,     KC_B,     KC_N,     KC_M,     KC_COMM,  KC_DOT,   KC_SLSH,  KC_RSPC,  MO(3),
+        KC_LCTL,  KC_LALT,  KC_LGUI,                                          KC_SPC,                                           KC_RGUI,  KC_RALT, KC_RCTL
+    ),
+
+    [COLEMAK] = LAYOUT_60_tsangan_hhkb(
+        KC_ESC,   KC_1,     KC_2,     KC_3,     KC_4,     KC_5,     KC_6,     KC_7,     KC_8,     KC_9,     KC_0,     KC_MINS,  KC_EQL,   KC_BSLS, KC_GRV,
+        KC_TAB,   KC_Q,     KC_W,     KC_F,     KC_P,     KC_G,     KC_J,     KC_L,     KC_U,     KC_Y,     KC_SCLN,  KC_LBRC,  KC_RBRC,  KC_BSPC,
+        LT(2, KC_CAPS),     KC_A,     KC_R,     KC_S,     KC_T,     KC_D,     KC_H,     KC_N,     KC_E,     KC_I,     KC_O,     KC_QUOT,  LT(2,KC_ENT),
+        KC_LSPO,            KC_Z,     KC_X,     KC_C,     KC_V,     KC_B,     KC_K,     KC_M,     KC_COMM,  KC_DOT,   KC_SLSH,  KC_RSPC,  MO(3),
+        KC_LCTL,  KC_LALT,  KC_LGUI,                                          KC_SPC,                                           KC_RGUI,  KC_RALT, KC_RCTL
+    ),
+
+    [FUNCTION] = LAYOUT_60_tsangan_hhkb(
+        XXXXXXX,  KC_F1,    KC_F2,    KC_F3,    KC_F4,    KC_F5,    KC_F6,    KC_F7,    KC_F8,    KC_F9,    KC_F10,   KC_F11,   KC_F12,   XXXXXXX, XXXXXXX,
+        XXXXXXX,  XXXXXXX,  KC_MPLY,  KC_MPRV,  KC_MNXT,  XXXXXXX,  XXXXXXX,  KC_HOME,  KC_UP,    KC_END,   KC_PSCR,  KC_SLCK,  KC_PAUS,  XXXXXXX,
+        _______,            XXXXXXX,  KC_MUTE,  KC_VOLD,  KC_VOLU,  XXXXXXX,  XXXXXXX,  KC_LEFT,  KC_DOWN,  KC_RGHT,  KC_DEL,   KC_INS,   _______,
+        _______,            KC_UNDO,  KC_CUT,   KC_COPY,  KC_PSTE,  KC_AGIN,  XXXXXXX,  XXXXXXX,  KC_WBAK,  KC_WFWD,  KC_WREF,  _______,  KC_WHOM,
+        _______,  _______,  _______,                                          _______,                                          _______,  KC_APP,  _______
+    ),
+
+    [ADJUST] = LAYOUT_60_tsangan_hhkb(
+        C(A(KC_DEL)),  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  KC_BRID,  KC_BRIU,  XXXXXXX, XXXXXXX,
+        C(S(KC_ESC)),  TO(0),    XXXXXXX,  XXXXXXX,  RESET,    XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,
+        XXXXXXX,            XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,
+        XXXXXXX,            XXXXXXX,  XXXXXXX,  TO(1),    XXXXXXX,  XXXXXXX,  NK_TOGG,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  XXXXXXX,  _______,
+        XXXXXXX,  XXXXXXX,  XXXXXXX,                                          _______,                                          XXXXXXX,  XXXXXXX, XXXXXXX
+    ),
+
+};

layouts/community/60_tsangan_hhkb/dohmain/readme.md

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+# dohmain's 60% Tsangan HHKB layout
+## Layout
+![Layout Image](https://i.imgur.com/LfTyOF4.png)
+## Features
+### CapsFn
+* Function layer is accessed by holding down `CapsLock` or `Enter`.
+* `CapsLock` and `Enter` still function as normal when tapped.
+### Space Cadet Shift
+* Left and right `Shift` keys now output opening parenthesis `(` and closing parenthesis `)`, respectively, when tapped.
+* When held down they function as normal.
+### Navigation Cluster
+The Navigation Cluster is laid out to be easily accessed with the right hand without moving your hand away from your typing position. The Navigation Cluster layout is focused around the placement of the arrow keys and is easy to remember the placement when broken down into groups.
+* #### Arrows 
+  * The arrow keys are placed on `I` `J` `K` `L` and maintains their natural positions.
+* #### Home/End
+  * `Home` on `U`
+  * `End` on `O`.
+* #### Page Up/Page Down
+  * `Page Up` on `H` 
+  * `Page Down` on `N`
+* #### Delete/Insert
+  * `Delete` on `;`
+  * `Insert` on `'`
+### Media Controls
+  * `Play/Pause` on `W`
+  * `Previous Track` on `E`
+  * `Next Track` on `R`
+  * `Mute` on `S`
+  * `Volume Down` on `D`
+  * `Volume Up` on `F`
+### Shortcuts
+  * `Undo` on `Z`
+  * `Cut` on `X`
+  * `Copy` on `C`
+  * `Paste` on `V`
+  * `Redo` on `B`
+  * `Print Screen` on `P`