Update documentation structure and configuration

Revised Sphinx directives in CLI and exceptions API docs to use ':no-index' instead of ':members', ':undoc-members', and ':show-inheritance'. Removed 'display_version' from Sphinx configuration. Added 'README' to the index page for better navigation.

docs/api/cli.md

@@ -4,9 +4,7 @@ The command-line interface module provides functions for the tzst CLI tool.
 
 ```{eval-rst}
 .. automodule:: tzst.cli
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :no-index:
 ```
 
 ## Main Functions
@@ -42,3 +40,15 @@ The command-line interface module provides functions for the tzst CLI tool.
 ```{eval-rst}
 .. autofunction:: tzst.cli.validate_compression_level
 ```
+
+### format_size
+
+```{eval-rst}
+.. autofunction:: tzst.cli.format_size
+```
+
+### validate_compression_level
+
+```{eval-rst}
+.. autofunction:: tzst.cli.validate_compression_level
+```

docs/api/exceptions.md

@@ -4,9 +4,7 @@ Custom exception classes used by tzst.
 
 ```{eval-rst}
 .. automodule:: tzst.exceptions
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :no-index:
 ```
 
 ## Exception Hierarchy

docs/conf.py

@@ -39,7 +39,6 @@ html_short_title = "tzst"
 html_theme_options = {
     "canonical_url": "https://xixu-me.github.io/tzst/",
     "logo_only": False,
-    "display_version": True,
     "prev_next_buttons_location": "bottom",
     "style_external_links": False,
     "style_nav_header_background": "#2980B9",

docs/index.md

@@ -9,6 +9,7 @@ Welcome to **tzst**, the next-generation Python library engineered for modern ar
 quickstart
 api/index
 examples
+README
 ```
 
 ## What is tzst?