updating the images
Merge branch 'master' of https://github.com/supunkamburugamuva/course-builder
Merge branch 'master' of https://github.com/supunkamburugamuva/course-builder
Merge branch 'master' of https://github.com/supunkamburugamuva/course-builder
Merge branch 'master' of https://github.com/supunkamburugamuva/course-builder
fixing the video