Fix typo in Docker installation documentation

[RhesusP]

Offcicial -> Official

[Krystropolis]

The words are still misspelled here. "Official" is the correct spelling and it is misspelled twice in line 3.

[gloriafolaron]

Official is spelled incorrectly. Thank you for updating!

[marcelfolaron]

Maintainer review (advisory — merge authority stays with @marcelfolaron / @broskees)

Intent: Fixes a typo in the Docker install intro line of installation/docker.md (Offcicial → in the link text).

Change requests (must address before merge):

1. Fix is incomplete / still misspelled — blocker. installation/docker.md:3 changes Offcicial → Offcial, but the correct word is Official (missing the i):

   -Please check the [Offcial Docker](https://docs.docker.com/get-docker/) page
   +Please check the [Official Docker](https://docs.docker.com/get-docker/) page

2. Adjacent typo left untouched on the same line. The line opens with We host our offical docker image — offical should be official. Since you're already editing this exact line, please fix both in one pass:

   -We host our offical docker image on Docker Hub ...
   +We host our official docker image on Docker Hub ...

3. The trailing-newline addition at docker.md:246 (adding the missing EOF newline) is a good incidental fix — keep it.

Acceptance checklist (must pass before merge):

1. Both Offcial→Official (item 1) and offical→official (item 2) corrected — do not merge with a spelling fix that leaves the word still misspelled.
2. CLA signed / green (first-time contributor).
3. N/A — no schema/API/behavior change (docs typo only).

CI status: No test gate for docs. The blocker is correctness: as written this PR replaces one misspelling with another, so it should not merge until item 1 is fixed.

[marcelfolaron]

Maintainer review — status: needs-info (advisory) · priority: P3 · next action: author completes the fix · owner: @RhesusP

1. Intent: Fixes a typo in installation/docker.md ("Offcicial" → "Offcial") and adds a trailing newline at end of file.

2. Change requests:

• Blocker (incomplete fix): the correction at installation/docker.md:3 fixes the link text but still isn't the right word:

  -Please check the [Offcicial Docker](https://docs.docker.com/get-docker/) page
  +Please check the [Offcial Docker](https://docs.docker.com/get-docker/) page

  Offcicial → Offcial is still misspelled; it should be Official. Please correct.
• Also on the same line: "offical docker image" earlier in docker.md:3 ("We host our offical docker image") is the same misspelling and is left untouched. Worth fixing both instances of offical/offcial → official in one pass.
• Good: the trailing-newline addition at EOF is a correct, clean change.

3. Acceptance checklist (must pass before merge):

• Both misspellings on docker.md:3 corrected to Official / official
• Docs build/link-check CI green
• No behavior change — docs-only, no test required

4. CI status: Not readable through my current tooling — confirm green in the UI. No test gap (docs typo); the blocker above is content correctness.

Advisory review only — not an approval. Merge authority stays with @marcelfolaron / @broskees.