chg: [README] list updated

Author: adulau

README.md

@@ -283,6 +283,7 @@ for a specific attribute. An optional **to_ids** boolean field to disable the ID
 - [objects/irc](https://github.com/MISP/misp-objects/blob/main/objects/irc/definition.json) - An IRC object to describe an IRC server and the associated channels.
 - [objects/ja3](https://github.com/MISP/misp-objects/blob/main/objects/ja3/definition.json) - JA3 is a new technique for creating SSL client fingerprints that are easy to produce and can be easily shared for threat intelligence. Fingerprints are composed of Client Hello packet; SSL Version, Accepted Ciphers, List of Extensions, Elliptic Curves, and Elliptic Curve Formats. https://github.com/salesforce/ja3.
 - [objects/ja3s](https://github.com/MISP/misp-objects/blob/main/objects/ja3s/definition.json) - JA3S is JA3 for the Server side of the SSL/TLS communication and fingerprints how servers respond to particular clients. JA3S fingerprints are composed of Server Hello packet; SSL Version, Cipher, SSLExtensions. https://github.com/salesforce/ja3.
+- [objects/ja4-plus](https://github.com/MISP/misp-objects/blob/main/objects/ja4-plus/definition.json) - JA4 is a technique for creating network fingerprints that are easy to produce and can be easily shared for threat intelligence. https://github.com/FoxIO-LLC/ja4/blob/main/technical_details/README.md.
 - [objects/jarm](https://github.com/MISP/misp-objects/blob/main/objects/jarm/definition.json) - Jarm object to describe an TLS/SSL implementation used for malicious or legitimate use-case.
 - [objects/keybase-account](https://github.com/MISP/misp-objects/blob/main/objects/keybase-account/definition.json) - Information related to a keybase account, from API Users Object.
 - [objects/language-content](https://github.com/MISP/misp-objects/blob/main/objects/language-content/definition.json) - The Language Content object represents text content for objects represented in languages other than that of the original object. Language content may be a translation of the original object by a third-party, a first-source translation by the original publisher, or additional official language content provided at the time of creation. STIX 2.1 ref 7.1.