Update networking layer w/ CURL and emscripten impl

External/curl-8.17.0/docs/cmdline-opts/ntlm.md

@@ -0,0 +1,27 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Long: ntlm
+Help: HTTP NTLM authentication
+Protocols: HTTP
+Requires: TLS
+Category: auth http
+Added: 7.10.6
+Multi: boolean
+See-also:
+  - proxy-ntlm
+Example:
+  - --ntlm -u user:password $URL
+---
+
+# `--ntlm`
+
+Use NTLM authentication. The NTLM authentication method was designed by
+Microsoft and is used by IIS web servers. It is a proprietary protocol,
+reverse-engineered by clever people and implemented in curl based on their
+efforts. This kind of behavior should not be endorsed, you should encourage
+everyone who uses NTLM to switch to a public and documented authentication
+method instead, such as Digest.
+
+If you want to enable NTLM for your proxy authentication, then use
+--proxy-ntlm.