KNOWN_BUGS: Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname

Closes #3284

docs/KNOWN_BUGS

@@ -32,6 +32,7 @@ problems may have been fixed or changed somewhat since this was written!
  2.5 Client cert handling with Issuer DN differs between backends
  2.6 CURL_GLOBAL_SSL
  2.7 Client cert (MTLS) issues with Schannel
+ 2.8 Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname
 
  3. Email protocols
  3.1 IMAP SEARCH ALL truncated response
@@ -299,6 +300,11 @@ problems may have been fixed or changed somewhat since this was written!
 
  See https://github.com/curl/curl/issues/3145
 
+2.8 Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname
+
+ This seems to be a limitation in the underlying Schannel API.
+
+ https://github.com/curl/curl/issues/3284
 
 3. Email protocols