Added Protocol conformance section to README

Author: ok2c

README.md

@@ -35,6 +35,16 @@ Dependencies
 
 HttpCore requires Java 1.8 compatible runtime.
 
+Protocol conformance
+--------------------
+- 
+- [RFC 9110](https://datatracker.ietf.org/doc/html/rfc9110) - HTTP Semantics
+- [RFC 9112](https://datatracker.ietf.org/doc/html/rfc9112) - Hypertext Transfer Protocol Version 1.1 (HTTP/1.1)
+- [RFC 7540](https://datatracker.ietf.org/doc/html/rfc7540) - Hypertext Transfer Protocol Version 2 (HTTP/2)
+- [RFC 7541](https://datatracker.ietf.org/doc/html/rfc7541) - HPACK: Header Compression for HTTP/2
+- [RFC 1945](https://datatracker.ietf.org/doc/html/rfc1945) - Hypertext Transfer Protocol -- HTTP/1.0
+- [RFC 3986](https://datatracker.ietf.org/doc/html/rfc3986) - Uniform Resource Identifier (URI): Generic Syntax
+
 Licensing
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