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Several documentation files are referenced in multiple toctrees, causing Sphinx build warnings like: document is referenced in multiple toctrees: [...], selecting: [...] Fix by narrowing glob patterns in parent toctrees to only match subdirectory index files, and replacing a toctree directive with a :doc: cross-reference: - platforms/arm/index.rst: glob */* -> */index - platforms/index.rst: glob */* -> */index - guides/changing_systemclockconfig.rst: toctree -> :doc: ref Fixes #14785 Signed-off-by: hanzj <hanzj@xiaomi.com>