docs: update known issues

Author: simllll

README.md

@@ -94,12 +94,10 @@ This allows this module to be used in other node projects:
 
 Support for this has landed in node 13.10.1, therefore ensure you have installed at least this node version.
 
-- MD5 Challenge not implemented, but RFC says this is mandatory ;-) (no worries, it isn't)
 - Inner Tunnel does not act differently, even though spec says that EAP-message are not allowed to get fragmented,
 this is not a problem right now, as the messages of the inner tunnel are small enough, but it could be a bug in the future.
 ways to approach this: refactor that the inner tunnel can set max fragment size, or rebuild eap fragments in ttls after inner tunnel response
-- minor security issues regarding session resumption. It could theoretically be possible to hijack when the auth is actually rejected, but the session is resumed 
-in the same time frame (sessions are currently not explicitly killed on rejected auths).
+- VLAN support is not fully configurable right now
 
 CONTRIBUTIONS WELCOME! If you are willing to help, just open a PR or contact me via bug system or [email protected].