Improve Docs

[ryanhamilton]

user-di Improve Docs

• Connecting - Only shown how to connect in a video.
• Some tutorial photos need updated
• Videos of complex parts always show too simple a scenario.
• Chart Components - guide is clunk to click on
• chart customization - Only simple examples in docs.

[femtotrader]

ability to enable subtitles in video could be a great feature to have for non native english speakers