README.md in kiev-3.0.0 vs README.md in kiev-4.0.0

- old
+ new

@@ -166,11 +166,11 @@
 {
   "application":"my_app",
   "event":"request_finished",
   "level":"INFO",
   "timestamp":"2017-01-27T16:11:44.123Z",
-  "request_host":"localhost",
+  "host":"localhost",
   "verb":"GET",
   "path":"/",
   "params":"{\"hello\":\"world\",\"password\":\"[FILTERED]\"}",
   "ip":"127.0.0.1",
   "request_id":"UUID",
@@ -384,10 +384,10 @@
 
 ```
 log_format kiev '{"application":"app_name", "event":"request_finished",'
   '"timestamp":"$time_iso8601", "request_id":"$http_x_request_id",'
   '"user_agent":"$http_user_agent", "status":$status,'
-  '"request_duration_seconds":$request_time, "request_host":"$host",'
+  '"request_duration_seconds":$request_time, "host":"$host",'
   '"verb":"$request_method", "path":"$request_uri", "tree_path": "$http_x_tree_path"}';
 
 log_format simple_log '$remote_addr - $remote_user [$time_local] '
                        '"$request" $status $bytes_sent '
                        '"$http_referer" "$http_user_agent"';