git: openjdk/crac: 8367975_checkpoint_pattern: Add docs

[duke]

Changeset: b02f242e
Branch: 8367975_checkpoint_pattern
Author:    Radim Vansa <rvansa at azul.com>
Date:      2025-09-30 11:14:11 +0000
URL:       https://git.openjdk.org/crac/commit/b02f242e83c4d9ab89c6712b6444b5e035407272

Add docs

! src/hotspot/share/runtime/globals.hpp
! src/java.base/share/man/java.md