upd readme

README.md

@@ -1,9 +1,14 @@
 # Github Actions for x-wei's pelican blog
 
-**Note:** this repo is still work-in-progress.
-
 Github actions config for building x-wei's static [blog](https://x-wei.github.io)
 with pelican and the customized bootstrap3 theme adopted from
 [farseerfc](https://github.com/farseerfc/pelican-bootstrap3).
 
 The repo is written with reference to nelsonjchen's [gh-pages-pelican-action](https://github.com/nelsonjchen/gh-pages-pelican-action).
+
+## Example usage
+
+    - name: Github Actions for x-wei's pelican blog
+      uses: X-Wei/[email protected]
+
+Cf. the [setup](https://github.com/X-Wei/x-wei.github.com/blob/master/.github/workflows/main.yml) in x-wei's blog.