Closes#30
This PR unifies `Major` to `MAJOR` to follow SemVer convention better, with `verb` corrected to `noun` (I'm treating this as a typo since the de facto standard is noun, so no new version is added with all old docs modified). Translations are also corrected (I can't read them, done with Google translation), except that Polish itself has used `noun` instead of `verb`. For Chinese version, some punctuation is optimized for better markdown layout.
