Merge pull request #1 from mugenen/release

Missing space before ":func:"
modify URL to sample files
update rubrics
add licensing terms
debug
fix typo
Merge pull request #2 from shingon/patch-1

fix typo
debug
Japanese 1.0.0
+ document improvement
outline of  chapter2
hide search page in epub
acknowledgements to bug reports
add link
typo
add social buttons
modify social buttons
Merge branch 'release'
brush up
Merge branch 'release'
add note