RFR: 8356686: doc/building.html is not up to date after JDK-8301971

[Kim Barrett]

On Sat, 10 May 2025 22:45:54 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this change to doc/building.html.  The change is the result of
> using `make update-build-docs` to regenerate it from the current building.md
> file.

Thanks for reviews.

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PR Comment: https://git.openjdk.org/jdk/pull/25168#issuecomment-2878287598