Update FDE tutorials for cloud instances

[byReqz]

My last update overlooked that cloud instances have out-of-network gateways, luckily DHCP is not being deprecated for them so there wasn't a big overhaul necessary.

I have read and understood the Contributor's Certificate of Origin available at the end of
https://raw.githubusercontent.com/hetzneronline/community-content/master/tutorial-template.md
and I hereby certify that I meet the contribution criteria described in it.
Signed-off-by: Nils github@nils.lol

[kokomo123]

LGTM, thank you for this fix

[svenja11]

Thank you for the update @byReqz

Could you please add the Contributor’s Certificate of Origin block to the description of this pull request (as a comment in the PR description).

So basically edit #1384 (comment) and add the Contributor’s Certificate of Origin block at the top (with your own name).

Contributor’s Certificate of Origin block:

I have read and understood the Contributor's Certificate of Origin available at the end of
https://raw.githubusercontent.com/hetzneronline/community-content/master/tutorial-template.md
and I hereby certify that I meet the contribution criteria described in it.
Signed-off-by: YOUR NAME

Once this is added, I will merge this PR.

[byReqz]

Hi, done.

Thank you for the update @byReqz

Could you please add the Contributor’s Certificate of Origin block to the description of this pull request (as a comment in the PR description).

So basically edit #1384 (comment) and add the Contributor’s Certificate of Origin block at the top (with your own name).

Contributor’s Certificate of Origin block:

I have read and understood the Contributor's Certificate of Origin available at the end of
https://raw.githubusercontent.com/hetzneronline/community-content/master/tutorial-template.md
and I hereby certify that I meet the contribution criteria described in it.
Signed-off-by: YOUR NAME

Once this is added, I will merge this PR.