New video tutorial

Khuất Văn Quyên, an eyegrade user from Vietnam, has created and published a video tutorial in Youtube covering topics such installing eyegrade on Windows, using it to grade exams and creating answer forms in Microsoft Word. Texts are in Vietnamese, but don't worry if you don't speak that language, because you should be able to follow the video and get most of the information despite of that.

Thanks a lot for this contribution!!!