Fix #66: directives/comments can start with indentaion
Fix #66: let comment match more character.
Fix #66: comment match ending whitespace with zero width.
Add a screen shot. again~
add typo ref
instant preview screen shot
zzs: for sphinx glossary

Signed-off-by: 张忠山 <zzs0213@gmail.com>
zzs: for chinese definition list hi

Signed-off-by: 张忠山 <zzs0213@gmail.com>
zzs: 识别多定义的 定义列表

Signed-off-by: 张忠山 <zzs0213@gmail.com>
zzs: fix definition list hi

Signed-off-by: 张忠山 <zzs0213@gmail.com>
zzs: use : as level0 char

Signed-off-by: 张忠山 <zzs0213@gmail.com>