darkhttpd: add page (#2490)

pages/common/darkhttpd.md

@@ -0,0 +1,15 @@
+# darkhttpd
+
+> Darkhttpd web server.
+
+- Start server serving the specified document root:
+
+`darkhttpd {{path/to/docroot}}`
+
+- Start server on specified port (port 8080 by default if running as non-root user):
+
+`darkhttpd {{path/to/docroot}} --port {{port}}`
+
+- Listen only on specified IP address (by default, the server listens on all interfaces):
+
+`darkhttpd {{path/to/docroot}} --addr {{ip_address}}`