Use example domain name (RFC2606).
Use the same example domain as English vresion.
Do not use "www.domain.com" but "www.example.com".
Merge branch '2.11-fix-example-domain' of https://github.com/taca/docs into 2.11
Merge branch '2.11' into 3.0
Merge branch '3.0' into 3.1