Links to PEPs are not rendered correctly in "Python Module Index"

[partev]

python's main documentation page https://docs.python.org/3.14/ links to Global module index

that index has two modules referring to PEPs which are not rendered correctly:

[picnixz]

Sphinx does not seem to process RST content beyond text inside :synopsis: node. cc @AA-Turner

We also have an issue with the inline content not being rendered for __main__:

The environment where top-level code is run. Covers command-line interfaces, import-time behavior, and ``__name__ == '__main__'``.