Extend README.md to mention KDNetwork being experimental

Author: seanharmer

README.md

@@ -50,6 +50,17 @@ You may also want to have a look at the
 [CI configuration](https://github.com/KDAB/KDUtils/blob/main/.github/workflows/build.yml)
 of this project to see which dependencies we use to build KDMqtt.
 
+## KDNetwork
+
+KDNetwork provides an experimental event-driven networking library on top of raw BSD sockets, KDFoundation
+and KDBindings.
+
+This library is still considered unstable and in development. As such we do not make any promises for API
+or ABI stability at this time. Please do feel free to take it for a test drive on Windows or Linux.
+
+KDNetwork offers support for TCP and SSL/TLS socket communications; non-blocking DNS resolution queries;
+higher-level protocols such as HTTPS, Server Sent Events and WebSockets.
+
 ## KDUtils/KDUtils
 
 This namespace is the namesake of the entire library, and contains the STL