docs: Simplify project_example_style config description

SilverRainZ · SilverRainZ · commit dfd08663ab6f · 2026-06-16T19:47:03.000+08:00
Remove detailed documentation of supported values and defaults, keeping only what the config controls.
diff --git a/docs/conf.rst b/docs/conf.rst
@@ -6,7 +6,4 @@ The extension provides the following configuration:
 
 .. autoconfval:: project_example_style
 
-   Controls the default value of the :rst:dir:`example` directive's
-   ``:style:`` option.
-
-   Supported values are ``grid`` and ``tab``. The default is ``grid``.
+   Controls the default value of the :rst:dir:`example:style` directive option.
