Update README

Author: AliSoftware

wp_rs_cli/README.md

@@ -37,14 +37,27 @@ wp_rs_cli --help
 ### fetch-post examples
 
 ```bash
-# WordPress.com (Bearer)
+# WordPress.com (Bearer) by post URL (auto derive site)
+wp_rs_cli fetch-post \
+  --url https://example.wordpress.com/2024/07/01/my-post \
+  --bearer "$WP_BEARER_TOKEN" \
+  --pretty
+
+# WordPress.com (Bearer) by explicit site and post id
 wp_rs_cli fetch-post \
   --wpcom-site example.wordpress.com \
   --post-id 123 \
   --bearer "$WP_BEARER_TOKEN" \
   --pretty
 
-# WordPress.org/Jetpack (Application Password)
+# WordPress.org/Jetpack (Application Password) by post URL (auto-discover /wp-json)
+wp_rs_cli fetch-post \
+  --url https://yoursite.com/blog/2024/07/01/my-post \
+  --username "$WP_USERNAME" \
+  --password "$WP_APP_PASSWORD" \
+  --pretty
+
+# WordPress.org/Jetpack (Application Password) by explicit API root and post id
 wp_rs_cli fetch-post \
   --api-root https://yoursite.com/wp-json \
   --post-id 123 \