Update README.md

Author: fxamacker

README.md

@@ -101,9 +101,10 @@ Additional comparisons may be added here from time to time (esp. speed compariso
 Each release passes coverage-guided fuzzing using [fxamacker/cbor-fuzz](https://github.com/fxamacker/cbor-fuzz).  Default corpus has:
 
 * 2 files related to WebAuthn (FIDO U2F key).
+* 3 files with custom struct.
+* 9 files with [CWT examples (RFC 8392 Appendix A)](https://tools.ietf.org/html/rfc8392#appendix-A)
 * 17 files with [COSE examples (RFC 8152 Appendix B & C)](https://github.com/cose-wg/Examples/tree/master/RFC8152).
 * 81 files with [CBOR examples (RFC 7049 Appendix A) ](https://tools.ietf.org/html/rfc7049#appendix-A). It excludes 1 errata first reported in [issue #46](https://github.com/fxamacker/cbor/issues/46).
-* 340 files generated by fuzzing for 50 hours with 2 workers on AMD EPYC 7601 virtual machine.
 
 Unit tests include all RFC 7049 examples, bugs found by fuzzing, 2 maliciously crafted CBOR data, and etc.