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>
118bf9b52d