git: openjdk/jdk11u: 8306408: Fix the format of several tables in building.md

[Severin Gehwolf]

Changeset: 659a4669
Branch: master
Author:    Zdenek Zambersky <zzambers at openjdk.org>
Committer: Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2025-02-24 15:29:43 +0000
URL:       https://git.openjdk.org/jdk11u/commit/659a4669208645420e151e78ab5fd3ac3808b310

8306408: Fix the format of several tables in building.md

Reviewed-by: andrew
Backport-of: 26755a968665545a151adce79a5227c79724bb6b

! doc/building.html
! doc/building.md