Implement bounded Notation LLSD codec

README.md

@@ -85,5 +85,10 @@ numeric and date byte order, seekable stream overloads, and position-bearing
 errors for malformed or truncated input. Its parser and encoder enforce the
 same byte, depth, node, and allocation bounds; map keys are encoded in sorted
 order to make output stable despite the model's intentionally unordered maps.
+The bounded Notation LLSD codec preserves UTF-16 length-prefix semantics, the
+reference escape rules and accepted scalar spellings, base64, base16 and
+length-prefixed binary forms, and both compact and formatted output. Malformed
+notation reports UTF-16 offsets with parser context, while input, output,
+nesting, node, and aggregate allocation limits apply to untrusted text.
 The controlled audit aggregates every expected failure by standardized C#
 member ID and rejects unrelated fixture, assertion, compile, or symbol errors.