Many video links

[maxwondercorn]

Issue #56

video links added in this PR:

• https://www.youtube.com/watch?v=5znpEiwHpL4
• https://www.youtube.com/watch?v=7Ym2ADCn77Q
• https://www.youtube.com/watch?v=BjKERSRpPeI
• https://www.youtube.com/watch?v=ECkbVa0iC4k
• https://www.youtube.com/watch?v=O4Mt-dDqkk0
• https://www.youtube.com/watch?v=R2JdP4lb5Xw
• https://www.youtube.com/watch?v=YxRvXgDIHW8
• https://www.youtube.com/watch?v=c0Rl6o9wLX0
• https://www.youtube.com/watch?v=eQUvN9Ujs1s&list=PLk51HrKSBQ88wDXgPF-QLMfPFlLwcjTlo
• https://www.youtube.com/watch?v=i_rsfHMF3x4
• https://youtu.be/iTPFsXcTAaY
• https://youtu.be/YxRvXgDIHW8
• https://www.youtube.com/playlist?list=PL4eq2DPpyBbmvEzhyW9fhMzlctxwrn8JM

[lifeart]

@maxwondercorn thank you!