documentation/yocto-project-qs: Added custom title page

documentation/yocto-project-qs: Added custom title page

The quick start guide is currently not using a title information to
set the title of the document (e.g. article.title or
article.articleinfo.title).
As other output formats may use the title information to create
metadata this information has to be added to the document. To preserve
current style of the document a custom title page has to be used. With
this for instance 'article.title' can be used instead of the
fake-title section currently used, leaving the style intact.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>