put instruction video online

[synctext]

from the Industrial Design team.

[devos50]

Might be a nice addition for Tribler 7 but very low priority.

[synctext]

We could really use a 60 to 120 or so second video on the new upcoming Tribler 7.0 release. https://forum.tribler.org/t/tribler-7-beta-release/3968

HowTo Install video + doing your first "Ubuntu" search query and doing a download. Inspiration:

• 10 years ago: https://www.youtube.com/watch?v=rFvNYVEN2Tc (this was a lot of work, free to copy this style&approach))
• https://www.youtube.com/results?search_query=tribler
• https://www.youtube.com/watch?v=HiMSDUysZdo