Create demo video for Discord Social Credential

@AlexAndrei98 I double checked our deliverables for Discord Social Credential so that you can check them off:

[ ] After producing features of the issuer agent and holder agent in RootsWallet
[ ] we will host this feature in an AWS service
[ ] make our implementations available on our open source RootsWallet repository w/ developer and user documentation of how to use it.
[ ] We will produce a video that demonstrates an end-to-end solution that produces a Discord Social Credential

roots-id / roots-react-native