Add path resolution for directives (#7)

README.md

@@ -38,10 +38,18 @@ extensions = [
 - **Default**: `None` (no limit)
 - **Description**: Sets a maximum line count for `llms_txt_filename`. If exceeded, the file is skipped and a warning is shown, but the build still completes.
 
+### `llms_txt_directives`
+
+- **Type**: list of strings
+- **Default**: `[]` (empty list)
+- **Description**: List of custom directive names to process for path resolution.
+
 ## Features
 
-- Automatically add content from `.. include::` directives
-
+- Automatically add content from `include` directives
+- Resolves relative paths in directives like `image` and `figure` to use full paths
+  - Ability to add list of custom directives with `llms_txt_directives`
+  - Optionally, prepend a base URL using Sphinx's `html_baseurl`
 
 ## License