Update Stack images.

src/data-structures/stack/README.fr-FR.md

@@ -20,7 +20,9 @@ autres articles en premier.
 
 Représentation simple de l'éxecution d'une pile avec des opérations empiler (push) et dépiler (pop).
 
-![Stack](https://upload.wikimedia.org/wikipedia/commons/b/b4/Lifo_stack.png)
+![Stack](./images/stack.jpeg)
+
+*Made with [okso.app](https://okso.app)*
 
 ## Références
 

src/data-structures/stack/README.ja-JP.md

@@ -9,7 +9,9 @@
 
 プッシュとポップの例
 
-![Stack](https://upload.wikimedia.org/wikipedia/commons/b/b4/Lifo_stack.png)
+![Stack](./images/stack.jpeg)
+
+*Made with [okso.app](https://okso.app)*
 
 ## 参考
 

src/data-structures/stack/README.ko-KR.md

@@ -16,7 +16,9 @@ _Read this in other languages:_
 
 다음은 push와 pop 연산을 실행하는 간단한 스택의 실행입니다.
 
-![Stack](https://upload.wikimedia.org/wikipedia/commons/b/b4/Lifo_stack.png)
+![Stack](./images/stack.jpeg)
+
+*Made with [okso.app](https://okso.app)*
 
 ## 참조
 

src/data-structures/stack/README.md

@@ -25,7 +25,9 @@ may require taking off multiple other items first.
 
 Simple representation of a stack runtime with push and pop operations.
 
-![Stack](https://upload.wikimedia.org/wikipedia/commons/b/b4/Lifo_stack.png)
+![Stack](./images/stack.jpeg)
+
+*Made with [okso.app](https://okso.app)*
 
 ## References
 

src/data-structures/stack/README.pt-BR.md

@@ -18,7 +18,9 @@ vários outros itens primeiro.
 Representação simples de um tempo de execução de pilha com operações
 _push_ e _pop_.
 
-![Stack](https://upload.wikimedia.org/wikipedia/commons/b/b4/Lifo_stack.png)
+![Stack](./images/stack.jpeg)
+
+*Made with [okso.app](https://okso.app)*
 
 ## Referências
 

src/data-structures/stack/README.ru-RU.md

@@ -15,7 +15,9 @@
 
 Иллюстрация работы со стеком.
 
-![Стек](https://upload.wikimedia.org/wikipedia/commons/b/b4/Lifo_stack.png)
+![Stack](./images/stack.jpeg)
+
+*Made with [okso.app](https://okso.app)*
 
 ## Ссылки
 

src/data-structures/stack/README.zh-CN.md

@@ -13,7 +13,9 @@
 
 栈的 push 和 pop 操作的示意
 
-![Stack](https://upload.wikimedia.org/wikipedia/commons/b/b4/Lifo_stack.png)
+![Stack](./images/stack.jpeg)
+
+*Made with [okso.app](https://okso.app)*
 
 ## 参考