fix: update API reference links in documentation for accuracy

Author: ya7010

docs/docs/examples.md

@@ -137,4 +137,4 @@ table = slide.add_table(data)
 presentation.save("project_status.pptx")
 ```
 
-These examples demonstrate some common use cases for TPPT. For more detailed information about specific features, please refer to the [API Reference](api.md). 
+These examples demonstrate some common use cases for TPPT. For more detailed information about specific features, please refer to the [API Reference](api/tppt.md). 

docs/docs/index.md

@@ -12,7 +12,7 @@ TPPT (Typed Python PowerPoint Tool) is a Python library for creating and manipul
 ## Quick Start
 
 ```python
---8<-- "docs/examples/simple.py"
+--8<-- "examples/simple.py"
 ```
 
 ## Getting Started

docs/docs/usage.md

@@ -98,4 +98,4 @@ shape.line_color = "#000000"
 shape.line_width = 2
 ```
 
-For more detailed information about specific features, please refer to the [API Reference](api.md). 
+For more detailed information about specific features, please refer to the [API Reference](api/tppt.md). 

docs/mkdocs.yml

@@ -40,23 +40,15 @@ plugins:
             docstring_style: google
             filters: ["!^_"]
           paths: [src]
-          inventories:
-            - src/tppt
-            - src/tppt/pptx
-            - src/tppt/pptx/dml
-            - src/tppt/pptx/shape
-            - src/tppt/pptx/text
-            - src/tppt/template
-            - src/tppt/types
-            - src/tppt/exception
 
 markdown_extensions:
+  - pymdownx.details:
   - pymdownx.highlight:
       anchor_linenums: true
-  - pymdownx.inlinehilite
+  - pymdownx.inlinehilite:
   - pymdownx.snippets:
       base_path: docs
-  - pymdownx.superfences
+  - pymdownx.superfences:
   - pymdownx.tabbed:
       alternate_style: true
   - pymdownx.tasklist: