Complete SSH transport release audit (#118)

README.md

@@ -32,6 +32,9 @@ The shared TOML schema, path rules, editor precedence, and Git remote formats
 are documented in [`docs/configuration.md`](docs/configuration.md).
 Embedded Git, HTTPS synchronization, merge behavior, and commit signing are
 documented in [`docs/git-synchronization.md`](docs/git-synchronization.md).
+The complete SSH lifecycle, failure, algorithm, dependency, target, and release
+matrix is documented in
+[`docs/ssh-transport-audit.md`](docs/ssh-transport-audit.md).
 Native credential storage, opaque secret references, user-presence policy, and
 bounded caching are documented in
 [`docs/secure-secret-storage.md`](docs/secure-secret-storage.md).