doc: add note to tls docs about secureContext availability

tls.createServer() and new tls.Server() ignore secureContext option.

PR-URL: #46224
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Author: tgerk

doc/api/tls.md

@@ -1938,8 +1938,9 @@ from `process.argv` as the default value of the `sessionIdContext` option, other
 APIs that create secure contexts have no default value.
 
 The `tls.createSecureContext()` method creates a `SecureContext` object. It is
-usable as an argument to several `tls` APIs, such as [`tls.createServer()`][]
-and [`server.addContext()`][], but has no public methods.
+usable as an argument to several `tls` APIs, such as [`server.addContext()`][],
+but has no public methods. The [`tls.Server`][] constructor and the
+[`tls.createServer()`][] method do not support the `secureContext` option.
 
 A key is _required_ for ciphers that use certificates. Either `key` or
 `pfx` can be used to provide it.