I’ve been using Loom for several weeks now, great quick and easy screen recording extension for Chrome.
If you’re not using it yet, get it now for free - Loom: Async Video Messaging for Work | Loom
(That’s a referral link from them, they’re in beta so they’re incentivizing people to refer, so please use that link 
Anyway, it’s quick, easy, and free. They just released integrations though, so it will work directly in Asana, which is an awesome feature to have!