Update README.md

Author: bzick

README.md

@@ -65,9 +65,9 @@ int websocket_frame_header(websocket_parser * parser) {
 int ion_websocket_frame_body(websocket_parser * parser, const char *at, size_t size) {
     if(parser->flags & WS_HAS_MASK) {
         // if frame has mask, we have to copy and decode data via websocket_parser_copy_masked function
-        websocket_parser_copy_masked(&parser->data->body[parser->offset], at, size, parser);
+        websocket_parser_decode(&parser->data->body[parser->offset], at, length, parser);
     } else {
-        memcpy(&parser->data->body[parser->offset], at, size);
+        memcpy(&parser->data->body[parser->offset], at, length);
     }
     return 0;
 }