Make the coach give advice about preload

[soulgalore]

Preload is coming, read @yoavweiss article for background:
https://www.smashingmagazine.com/2016/02/preload-what-is-it-good-for/

The coach should know about preload and give smart advice about when it can be used and when it shouldn't.

[Sudarshan013]

Hi, I would like to work on this issue. Wanted to know is the issue still relevant?

[soulgalore]

Hi @Sudarshan013 yes please go ahead if you have the time. I think at least we can surface how the preload is used, then its harder to know if it's correct or not I guess.