docs/zh_CN: sync process/2.Process.rst with English version

The Chinese translation of the development process documentation was
outdated. Sync it with the current English version to ensure consistency.

Key changes include:
- Update versioning examples from 5.x to the 9.x placeholder.
- Add footnote [1] to explain the non-semantic versioning scheme.
- Replace the obsolete LTS kernel table with a link to kernel.org.
- Add a cross-reference for the "interleaved replies" section.

Update the translation through commit 5ce70894f6ca
("Doc: correct spelling and wording mistakes")

Signed-off-by: Song Hongyi <szpcq123@gmail.com>
Signed-off-by: Alex Shi <alexs@kernel.org>