Add note for importing keys and updating packages with sudo

[DerekCrosson]

A note for people using a non-root user with elevated privileges. Myself and someone else experienced this today while installing Polkadot using Ansible.

Is it cool if this PR is from master since it's a small update? Sorry :)

[cla-bot-2021[bot]]

User @DerekCrosson, please sign the CLA here.

[DerekCrosson]

Hello @DerekCrosson, thank you for your PR. This is a good addition. I would prefer not to mention the "above" code to avoid duplication. We can simply show how it works as sudo.

To make things cleared, you could extract the previous instruction as a sub-chapter and add a new sudo/root specific chapter. That would help users picking quickly the part they need.

Sure, will get to this a bit later today or tomorrow 🙂

[DerekCrosson]

Hello @DerekCrosson, thank you for your PR. This is a good addition. I would prefer not to mention the "above" code to avoid duplication. We can simply show how it works as sudo.

To make things cleared, you could extract the previous instruction as a sub-chapter and add a new sudo/root specific chapter. That would help users picking quickly the part they need.

Hey, @chevdor 👋🏾

Sorry, I only got to this now. When you have a chance, please have a look to see if my changes are okay? I'm not sure if I've made the changes correctly or if I can use better wording

[chevdor]

bot rebase

[paritytech-processbot[bot]]

Branch is already up-to-date

[DerekCrosson]

LGTM, please consider the few suggestions I made.

Thanks, @chevdor! I've just made the suggested changes :)

[chevdor]

I requested additional reviews to get it approved and we will need to convince CI that it is OK :) We may need a rebase but I can do that when the tests are fixed in master.