fix(readme): claim-envelope check #8 — disambiguate cross-repo link visible text

The asciidoc link macro's visible text matched the local-path-resolution
heuristic of `Aspect (claim envelope)` test #8 (`Path references in docs
resolve to real files`), which interpreted the bracketed display string
`nextgen-languages/docs/disambiguation/ephapax-vs-affinescript.md` as a
path inside *this* repo and reported it stale (file does live under
hyperpolymath/nextgen-languages — the URL target is correct; only the
visible text triggered the false positive).

Change visible text to a prose label that doesn't look like a relative
path. URL target unchanged.

Unblocks PR #99 and every other typed-wasm cargo CI run currently
failing on Smoke test for the same envelope-check violation.

Refs #99

Author: hyperpolymath

README.adoc

@@ -33,7 +33,7 @@ each consumer are independent — a fix that aligns the verifier with one
 language's invariants says nothing about the other.
 
 Canonical disambiguation:
-link:https://github.com/hyperpolymath/nextgen-languages/blob/main/docs/disambiguation/ephapax-vs-affinescript.md[nextgen-languages/docs/disambiguation/ephapax-vs-affinescript.md].
+link:https://github.com/hyperpolymath/nextgen-languages/blob/main/docs/disambiguation/ephapax-vs-affinescript.md[ephapax vs affinescript — disambiguation doc (in `hyperpolymath/nextgen-languages`)].
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 **Progressive type safety for WebAssembly linear memory — checked L1-L10 core, 0 believe_me in the checked proof package.**