translation updated for lines #2 -> #8 and #75
Updated Preferences' menu translation
Merge pull request #27 from davegomez/es-patch

LA Spanish translation update
Merge pull request #5 from rhiokim/master

update
update zh translation
Merge pull request #29 from breeswish/zh-translation

Updated zh translation
remove markdown syntax description in menu label
add markdown footnotes option
add footnotes menu label & option label