Add the article page for LXC

This translation is different from original English page in the following:
* Add the link to the Japanese translation of "LXC 1.0 blog post series"
* Add the link to the article about LXC that is published on gihyo.jp (by me and Tamuki-san)

Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>