Update README.md

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@@ -81,7 +81,7 @@ The final repaired exact-state parquet (`states.parquet`) has 1,232,800 rows wit
Two repair layers were applied:
1. **Sanitizer pre-pass.** A MuDirac-style state-energy sanitizer catches gross wrong-`n` convergence failures, especially collapsed fine-structure branches where one `(n,l,s)` branch lands on a neighboring shell. It also repairs high-error same-shell outliers and obvious adjacent-`n` trend breaks when local branch fits support the replacement.
1. **Sanitizer pre-pass.** A MuDirac state-energy sanitizer catches gross wrong-`n` convergence failures, especially collapsed fine-structure branches where one `(n,l,s)` branch lands on a neighboring shell. It also repairs high-error same-shell outliers and obvious adjacent-`n` trend breaks when local branch fits support the replacement.
2. **Low-Z/high-`n` repair.** MuDirac high-`n` states become numerically unstable at low Z. Full-shell replacement is used for He from `n = 12`, Li from `n = 14`, Be from `n = 15`, B from `n = 17`, C from `n = 18`, and N from `n = 19`. Oxygen uses only sparse exception repairs. The full-shell model is element-level: it uses trusted lower-`n` shells across all isotopes of the element, enforces an `n^2`-scaled backbone, uses an empirical `l`-shape, ties the two fine-structure branches at the same `(n,l)` to the same energy, applies a small isotope anchor scale, and calibrates selected `n = 20` endpoints to the visually accepted scale.