fix: documentation

Author: mishaga

basic_data_structure/linked_list.py

@@ -45,6 +45,30 @@ def main():
     # Output: 1 2 3 4 5 6 7 8 9
 
 
+if __name__ == '__main__':
+    main()
+
+```
+
+## ListNode
+
+`basic_data_structure.nodes.list_node.ListNode`
+
+If you'd like to create linked list by yourself, you can use `ListNode` class like so, for example:
+
+```python
+from basic_data_structure import ListNode
+
+
+def main():
+    head = ListNode(1, ListNode(2, ListNode(3)))
+    while head:
+        print(head.value, end=' ')
+        head = head.next
+
+    # Output: 1 2 3
+
+
 if __name__ == '__main__':
     main()
 
@@ -95,29 +119,7 @@ def main():
 
    ```
 
-## ListNode
-
-`basic_data_structure.nodes.list_node.ListNode`
-
-If you'd like to create linked list by yourself, you can use `ListNode` class like this, for example:
-
-```python
-from basic_data_structure import ListNode
-
-
-def main():
-    head = ListNode(1, ListNode(2, ListNode(3)))
-    while head:
-        print(head.value, end=' ')
-        head = head.next
-
-    # Output: 1 2 3
-
-
-if __name__ == '__main__':
-    main()
-
-```
+## Public methods
 """
 
 from typing import Any, Optional

basic_data_structure/stack.py

@@ -37,20 +37,7 @@ def main() -> None:
 
 ```
 
-## Dunder methods
-
-1. `__bool__` – return `False` if the stack is empty, `True` otherwise
-   ```python
-   while stack:
-       value = stack.pop()
-   ```
-2. `__len__` – return length (count of elements) of the stack
-   ```python
-   if len(stack) > 2:
-       ...
-   ```
-
-### A note on iteration
+## A note on iteration
 
 The `__iter__` and `__next__` methods are not implemented **intentionally**. If you want to iterate
 over a Stack like this `for i in stack`, you're better off using built-in `list` instead, because
@@ -64,6 +51,21 @@ def main() -> None:
     element = stack.pop()
     ...
 ```
+
+## Dunder methods
+
+1. `__bool__` – return `False` if the stack is empty, `True` otherwise
+   ```python
+   while stack:
+       value = stack.pop()
+   ```
+2. `__len__` – return length (count of elements) of the stack
+   ```python
+   if len(stack) > 2:
+       ...
+   ```
+
+## Public methods
 """
 
 from typing import Any