Enhance docs (#401)

* feat: nested_key_dict to tree to support child_key=None

* feat: tree to nested_key_dict to support child_key=None

* docs: update docs

* docs: update CHANGELOG

Author: kayjan

CHANGELOG.md

@@ -4,13 +4,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Changed:
+- Docs: Enhanced docs.
+
 ## [0.30.1] - 2025-09-10
 ### Added:
 - Tree Construct: `nested_dict_key_to_tree` to support child_key=None.
 - Tree Export: `tree_to_nested_dict_key` to support child_key=None.
-### Changed
+### Changed:
 - Misc: Some code refactoring, enhance assemble_attributes.
-### Fixed
+### Fixed:
 - Test: Test for `tree_to_nested_dict_key` for BinaryNode.
 - Error: Check and throw error for `dataframe_to_dag`, previously this error will not have been found out.
 

bigtree/tree/construct/strings.py

@@ -111,8 +111,17 @@ def str_to_tree(
 
     Examples:
         >>> from bigtree import str_to_tree
-        >>> tree_str = 'a\n├── b\n│   ├── d\n│   └── e\n│       ├── g\n│       └── h\n└── c\n    └── f'
-        >>> root = str_to_tree(tree_str, tree_prefix_list=["├──", "└──"])
+        >>> tree_str = (
+        ...     'a\n'
+        ...     '├── b\n'
+        ...     '│   ├── d\n'
+        ...     '│   └── e\n'
+        ...     '│       ├── g\n'
+        ...     '│       └── h\n'
+        ...     '└── c\n'
+        ...     '    └── f'
+        ... )
+        >>> root = str_to_tree(tree_str)
         >>> root.show()
         a
         ├── b