finish preface
update preface
code sync
update for drone.io
add font FZSongS
try new font FZSong-S in drone.io
finish chapter 1
add sample for publisher
Merge pull request #1 from wnereiz/master

Added openSUSE
minor modification for preface
Add contributor wnereiz
add a section in preface
minnor modification for Preface
update book-sample.pdf
add CONTRIBUTION handbook
add a Makefile, so that it is easy to use
update Makefile
update template.tex
typo update
book sample updated