docs: point two broken links to archive.org

Closes curl#18393

Author: vszakats

docs/FAQ

@@ -1026,7 +1026,7 @@ FAQ
   timeout is set.
 
   See option TcpMaxConnectRetransmissions on this page:
-  https://support.microsoft.com/en-us/kb/175523/en-us
+  https://web.archive.org/web/20160819015101/support.microsoft.com/en-us/kb/175523
 
   Also, even on non-Windows systems there may run a firewall or anti-virus
   software or similar that accepts the connection but does not actually do

src/tool_doswin.c

@@ -472,7 +472,8 @@ static SANITIZEcode rename_if_reserved_dos(char **const sanitized,
 
   /* Rename reserved device names that are known to be accessible without \\.\
      Examples: CON => _CON, CON.EXT => CON_EXT, CON:ADS => CON_ADS
-     https://support.microsoft.com/en-us/kb/74496
+     https://web.archive.org/web/20160314141551/
+       support.microsoft.com/en-us/kb/74496
      https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247.aspx
      */
   for(p = fname; p; p = (p == fname && fname != base ? base : NULL)) {