Update project jquery.scrolldepth.js to 0.7.1
Update project video.js to 4.11.3
Added markdown-it
Merge pull request #2792 from jsdelivrbot/jquery.scrolldepth.js/0.7.1

Update project jquery.scrolldepth.js to 0.7.1
Merge pull request #2793 from jsdelivrbot/video.js/4.11.3

Update project video.js to 4.11.3
Merge pull request #2796 from puzrin/markdown-it

Added markdown-it