git: openjdk/jdk: 8318693: Fix rendering for code blocks nested under list items in building.md

[Conor Cleary]

Changeset: 54c613ac
Author:    Zixian Cai <zcai at openjdk.org>
Committer: Conor Cleary <ccleary at openjdk.org>
Date:      2023-10-24 14:36:52 +0000
URL:       https://git.openjdk.org/jdk/commit/54c613acd7a7f051e65d73a1318346cb4f5a234a

8318693: Fix rendering for code blocks nested under list items in building.md

Reviewed-by: erikj, ccleary

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