new file:   docs/books/2013.md
	new file:   docs/books/2014.md
	new file:   docs/books/myshelf.md
	new file:   docs/books/shelf
	modified:   mkdocs.yml
	deleted:    docs/about.md
	deleted:    docs/books.md
	deleted:    docs/about.md
	deleted:    docs/books.md