docs: convert bold cross-references into links, link SEP and RFC mentions #3175

Job	Run time
checks / pre-commit	48s
checks / readme-snippets	15s
checks / docs	43s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 16s
checks / test (3.12, locked, windows-latest)	1m 37s
checks / test (3.14, locked, ubuntu-latest)	2m 19s
checks / test (3.14, locked, windows-latest)	2m 23s
checks / test (3.11, lowest-direct, windows-latest)	1m 56s
checks / test (3.10, lowest-direct, windows-latest)	2m 3s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 17s
checks / test (3.10, locked, windows-latest)	1m 35s
checks / test (3.13, locked, windows-latest)	2m 7s
checks / test (3.13, locked, ubuntu-latest)	1m 3s
checks / test (3.13, lowest-direct, windows-latest)	1m 48s
checks / test (3.12, locked, ubuntu-latest)	1m 31s
checks / test (3.14, lowest-direct, windows-latest)	1m 39s
checks / test (3.11, locked, ubuntu-latest)	1m 8s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 8s
checks / test (3.12, lowest-direct, windows-latest)	1m 49s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 13s
checks / test (3.11, locked, windows-latest)	2m 16s
checks / test (3.10, locked, ubuntu-latest)	1m 13s
all-green	3s
	34m 24s

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