docs: added GC friendly feature

Author: ronag

README.md

@@ -1,11 +1,12 @@
 # node-http2-proxy
 
-A simple http/2 & http/1.1 to http/1.1 spec compliant proxy helper for Node.
+A simple high performance http/2 & http/1.1 to http/1.1 spec compliant proxy helper for Node.
 
 ### Features
 
 - Proxies HTTP 2, HTTP 1.1 and WebSocket
 - Simple and easy to follow implementation
+- GC friendly with minimal allocations
 - [Hop by hop header handling](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers)
 - [Connection header handling](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Connection)
 - [Via header handling](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Via)