Add tip to open local server URL after build

diff --git a/docs/README.md b/docs/README.md
index 11bfb710eccce9382f0e8949be2bc7527d3c49f3..2e6b52268a38bae789a77a62f5339ae6c5886b4d 100644 (file)
--- a/docs/README.md
+++ b/docs/README.md
@@ -24,4 +24,6 @@ To view the documentation on your system locally:
 jekyll serve --incremental --config _config.local.yml
 ```
 
-This will start an HTTP server at `http://localhost:4000/` that serves the docs built in the `_site` directory; and anytime the docs are rebuilt by you, it will serve the docs site on the fly. In your main shell session where you develop, if you change anything in `docs/` the jekyll server will rebuild those on the fly. But if you change anything about the Bulma SASS or CSS, you need to do `npm run start` to build the docs' CSS before you will see it in the browser. The process running `jekyll serve` will pick up the new CSS automatically.
+This will start an HTTP server at `http://localhost:4000/` that serves the docs built in the `_site` directory; and anytime the docs are rebuilt by you, it will serve the docs site on the fly. You can also add the `--open-url` option (or its alias `--o`) to automatically open the server URL in your default browser when it's ready.
+
+In your main shell session where you develop, if you change anything in `docs/` the jekyll server will rebuild those on the fly. But if you change anything about the Bulma SASS or CSS, you need to do `npm run start` to build the docs' CSS before you will see it in the browser. The process running `jekyll serve` will pick up the new CSS automatically.