Added CC-BY-SA licence for all textual contents
* this only applies for the "source/00_content" subtree
** the actual static site generation implementation is explicitly NOT licensed under the terms of the CC-BY-SA license
Added README.md to the content level
Squashed 'source/00_content/' changes from 63d9db8..72c93ae

72c93ae Added README.md to the content level
c30c627 Added CC-BY-SA licence for all textual contents * this only applies for the "source/00_content" subtree ** the actual static site generation implementation is explicitly NOT licensed under the terms of the CC-BY-SA license

git-subtree-dir: source/00_content
git-subtree-split: 72c93ae35954ebad5e06113ada3fcd4e8b9fc4bb
Merge commit '97a8f3982e7978ad7347b6d560d6bea53ec26893'