fix: revert README to v1.x documentation on main #413

Job	Run time
checks / pre-commit	38s
checks / readme-snippets	14s
checks / test (3.10, locked, windows-latest)	2m 27s
checks / test (3.11, lowest-direct, windows-latest)	2m 41s
checks / test (3.10, lowest-direct, ubuntu-latest)	55s
checks / test (3.11, lowest-direct, ubuntu-latest)	54s
checks / test (3.13, locked, windows-latest)	2m 31s
checks / test (3.11, locked, windows-latest)	2m 28s
checks / test (3.13, locked, ubuntu-latest)	43s
checks / test (3.10, lowest-direct, windows-latest)	2m 46s
checks / test (3.14, locked, ubuntu-latest)	2m 19s
checks / test (3.13, lowest-direct, windows-latest)	2m 43s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 15s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.11, locked, ubuntu-latest)	51s
checks / test (3.14, lowest-direct, windows-latest)	2m 58s
checks / test (3.14, locked, windows-latest)	3m 6s
checks / test (3.13, lowest-direct, ubuntu-latest)	49s
checks / test (3.10, locked, ubuntu-latest)	49s
checks / test (3.12, locked, ubuntu-latest)	55s
checks / test (3.12, locked, windows-latest)	3m 27s
checks / test (3.12, lowest-direct, windows-latest)	3m 48s
all-green	4s
	40m 22s

Provide feedback