Great idea BUT - There is already an extremely good plugin that does this - Video User Manuals. http://www.videousermanuals.com/

The tutorials are excellent, always up to date, are in a variety of languages plus in addition to the learning WordPress basics it include tutorial videos for the WooCommerce and Yoast SEO plugins.

It is a monthly subscription of US$24 / month. We are subscribers and have been for at least 2 years. As developers launch every new client site with the plugin installed. We find that our website clients love the easy access (from there dashboard), the short and concise videos. I cannot begin to calculate over the last couple of years how many hours of one on one tutoring that this plugin has saved us.