[Docs] fix wrong directory for RGB Matrix animations (#14494)

docs/feature_led_matrix.md

@@ -244,14 +244,7 @@ static bool my_cool_effect2(effect_params_t* params) {
 #endif // LED_MATRIX_CUSTOM_EFFECT_IMPLS
 ```
 
-For inspiration and examples, check out the built-in effects under `quantum/led_matrix_animations/`
+For inspiration and examples, check out the built-in effects under `quantum/led_matrix/animations/`.
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 ## Additional `config.h` Options :id=additional-configh-options

docs/feature_rgb_matrix.md

@@ -562,7 +562,7 @@ static bool my_cool_effect2(effect_params_t* params) {
 #endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 ```
 
-For inspiration and examples, check out the built-in effects under `quantum/rgb_matrix_animations/`
+For inspiration and examples, check out the built-in effects under `quantum/rgb_matrix/animations/`.
 
 
 ## Colors :id=colors