This website is actually rendered from the Wiki contents that you can edit.
When viewing a page on the static HTML website you can click on the edit link (bottom of the page) and you can edit the page.
For more information see How do I edit the website.
Other useful Site links are
Note that it takes a little while to update the Apache site at http://camel.apache.org/ due to caching. Though this site usually updates quickly: http://cwiki.apache.org/CAMEL/