Added videos to "Customize DevTools" - #2161

Added videos to "Customize DevTools"#2161

Patrick Brosset (captainbrosset) merged 5 commits into

MicrosoftDocs:mainMicrosoftDocs/edge-developer:mainfrom

mikehoffms:user/mikehoffms/custui-vidmikehoffms/edge-developer:user/mikehoffms/custui-vidCopy head branch name to clipboard