Update README.md

Author: sequoiar

README.md

@@ -13,7 +13,7 @@
 * Node.js v12.x API compatible
 * Support UDT(UDP-based transport) protocol
 * Run HTTP and HTTPS over UDT over UDP, taking UDP high performance
-* Support multi-process/thread UDP server by utilizing multi-cores' CPU
+* Support high-performance multi-process/thread UDP server by utilizing multi-cores' CPU
 * Configurable Congestion Control
 * Per-Socket network performance monitor
 * Extend client/central server style web service transparently