kate: improve remote document example

[navarroaxel]

• The page (if new), does not already exist in the repo.
• The page is in the correct platform directory (common/, linux/, etc.)
• The page has 8 or fewer examples.
• The PR title conforms to the recommended templates.
• The page follows the content guidelines.
• The page description includes a link to documentation or a homepage (if applicable).

Resolve open discussion in #5834

[navarroaxel]

@Waples don't be an eager merger. if I request the review of @bl-ue is for check if has more comments or suggestion over this page.

[bl-ue]

@Waples usually it's good to give a PR some time before merging, if it's approved enough. I usually respond to notifications quickly, so I would have seen this relatively soon after I was requested.

As for approval, @navarroaxel here you go: ✅