chore: updating example manifests and getting-started guide

[Fernando-Benegas]

Motivation

Parent issue: https://github.com/traefik/hub-issues/issues/2035

This is a temporal change since all the files will be moved to the main Traefik Hub documentation repo

[Fernando-Benegas]

@mloiseleur are we still keeping this repo updated?

~~@Fernando-Benegas I believe you're supposed to open this PR in the hub-doc repo. ~~

@sheddy-traefik This is just part of the gettting-started update as a temporal solution, since I need to keep correcting others tutorial examples. As soon as I have all the files corrected, I'll move everything to hub-doc in tutorials folder

[Fernando-Benegas]

@mloiseleur are we still keeping this repo updated?
~~@Fernando-Benegas I believe you're supposed to open this PR in the hub-doc repo. ~~

@sheddy-traefik This is just part of the gettting-started update as a temporal solution, since I need to keep correcting others tutorial examples. As soon as I have all the files corrected, I'll move everything to hub-doc in tutorials folder

@sheddy-traefik The hub-doc pr has been merged. Could you pleaase approve this one so we can have both updated?

Fyi, I'll move all the files from this repo to hub-doc as soon as I validate all the files

[sheddy-traefik]

LGTM!