[Docs] Refactor code examples (#18003)

docs/feature_encoders.md

@@ -125,34 +125,37 @@ Layer conditions can also be used with the callback function like the following:
 
 ```c
 bool encoder_update_user(uint8_t index, bool clockwise) {
-    if (get_highest_layer(layer_state|default_layer_state) > 0) {
+    switch(get_highest_layer(layer_state|default_layer_state)) {
+        case 0:
             if (index == 0) {
                 if (clockwise) {
-                tap_code(KC_WH_D);
+                    tap_code(KC_PGDN);
                 } else {
-                tap_code(KC_WH_U);
+                    tap_code(KC_PGUP);
                 }
             } else if (index == 1) {
                 if (clockwise) {
-                tap_code_delay(KC_VOLU, 10);
+                    rgb_matrix_increase_speed();
                 } else {
-                tap_code_delay(KC_VOLD, 10);
+                    rgb_matrix_decrease_speed();
                 }
             }
-    } else {  /* Layer 0 */
+            break;
+        case 1:
             if (index == 0) {
                 if (clockwise) {
-                tap_code(KC_PGDN);
+                    tap_code(KC_WH_D);
                 } else {
-                tap_code(KC_PGUP);
+                    tap_code(KC_WH_U);
                 }
             } else if (index == 1) {
                 if (clockwise) {
-                rgb_matrix_increase_speed();
+                    tap_code_delay(KC_VOLU, 10);
                 } else {
-                rgb_matrix_decrease_speed();
+                    tap_code_delay(KC_VOLD, 10);
                 }
             }
+            break;
     }
     return false;
 }

docs/feature_rgb_matrix.md

@@ -889,15 +889,15 @@ void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
 }
 ```
 
-Layer indicator on all flagged keys:
+Layer indicator on all keys:
 ```c
 void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
     for (uint8_t i = led_min; i <= led_max; i++) {
         switch(get_highest_layer(layer_state|default_layer_state)) {
-            case RAISE:
+            case 2:
                 rgb_matrix_set_color(i, RGB_BLUE);
                 break;
-            case LOWER:
+            case 1:
                 rgb_matrix_set_color(i, RGB_YELLOW);
                 break;
             default:
@@ -907,7 +907,7 @@ void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
 }
 ```
 
-Layer indicator with only configured keys:
+Layer indicator only on keys with configured keycodes:
 ```c
 void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
     if (get_highest_layer(layer_state) > 0) {

docs/newbs_learn_more_resources.md

@@ -20,7 +20,6 @@ Not sure which text editor to use?
 Editors specifically made for code:
 * [Sublime Text](https://www.sublimetext.com/)
 * [VS Code](https://code.visualstudio.com/)
-* [Atom](https://atom.io/)
 
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