Add Owner vs Consensus key separation in node wallet setup guide

[HDauven]

Resolves #91

[Neotamandua]

LGTM. Added two small suggestions

[cyborgjox]

Pros Can unstake and claim rewards while using web wallet. If consensus key / public profile 1 is set to stake owner

Cons Cannot unstake or claim rewards while using web wallet, as long as profile 2 public address is set as stake owner.

(Second profile owner can only be added through rusk-wallet. The feature not available on web wallet)

For the record, I don't see the second option as a con, but a new safety feature, if someone gains access to your web wallet.😅

[HDauven]

Pros Can unstake and claim rewards while using web wallet. If consensus key / public profile 1 is set to stake owner

Cons Cannot unstake or claim rewards while using web wallet, as long as profile 2 public address is set as stake owner.

(Second profile owner can only be added through rusk-wallet. The feature not available on web wallet)

For the record, I don't see the second option as a con, but a new safety feature, if someone gains access to your web wallet.😅

Thanks for the feedback! I'm going to leave this out as we do not promote the web wallet for this use at the moment. It still lacks features we have on our backlog for this.