Clean up.
Added example content with lists, pictures and table.
Merge branch 'develop' of https://github.com/netzzwerg/book-page into develop
5ca30809404fbd563a1d02151f6dfb.

Conflicts:
	index.html
	main.css
	scss/main.scss

Conflicts:
	index.html
	main.css
	scss/component/_layout.scss