Update README.md
diff --git a/README.md b/README.md
index 57b641d..5785dd2 100644
--- a/README.md
+++ b/README.md
@@ -13,30 +13,22 @@
git clone https://github.com/apache/karaf-site.git
```
-## Build
+## Building
-You need a machine with Maven to build the website.
+Karaf website uses jekyll to build (generate the HTML resources).
-Checkout:
+To install Jekyll, refer to https://jekyllrb.com/docs/
-```
-http://svn.apache.org/repos/asf/karaf/site/trunk/ karaf-site
-```
-
-## Development
-
-Installation of dev environment, follow official instructions:
-
-https://jekyllrb.com/docs/
-
-## Run
-
-To start Jekyll local server, just run:
+Once Jekyll is installed, you can build website using:
```
bundle exec jekyll serve
```
+This command builds website and start the local Jekyll server on http://localhost:4000
+
+NB: your local Jekyll installation might need additional modules required by Apache Karaf website. Just run `bundle install` to install these modules.
+
## Deploy
Build the site for production:
