There is the legacy kiwi version and there is this kiwi(next generation).
From a documentation perspective there are several inconsistencies that
could confuse users. This commit makes the name for KIWI-NG consistent
across the entire documentation. At places where we point to older
documentation we use the term Legacy KIWI and a link to the documentation
that covers this part. All this is needed in preparation to cleanup the
documentation situation for the SUSE documentation but with respect to
the upstream doc sources, their layout and markup.
SUSE documentation is based on docbook or asciidoc. The kiwi
documentation is maintained along with the code and uses the
sphinx system and therefore ReST as markup language. We would
like to keep one source and don't want to move to another markup
language. Thus the sources needs to be structured in a way that
allows translation into sphinx supported targets as well as
into SUSE docbook style. This commit changes the documentation
structure in a way that both is possible. With the use of Sphinx
XML and rstxml2docbook the ReST docs are converted into docbook.
From there the SUSE daps tool can create SUSE documentation
