CONTRIBUTING.md in leaflet-js-0.7.0

- old
+ new

@@ -136,13 +136,13 @@
 
 If you need to make edits in a local repository to see how it looks in the process, do the following:
 
  1. [Install Ruby](http://www.ruby-lang.org/en/) if don't have it yet.
  2. Run `gem install jekyll`.
- 3. Run `jekyll --auto` inside the `Leaflet` folder.
- 4. Open the website from the `_site` folder.
+ 3. Run `jekyll serve --watch` in the root `Leaflet` folder.
+ 4. Open `localhost:4000` in your browser.
 
-Now any file changes will be reflected on the generated pages automatically.
+Now any file changes will be updated when you reload pages automatically.
 After commiting the changes, just send a pull request.
 
 If you need to update documentation according to a new feature that only appeared in the master version (not stable one),
 you need to make changes to `gh-pages-master` branch instead of `gh-pages`.
 It will get merged into the latter when released as stable.