tune timeout description

for new timed-out@3.1.0 options

readme.md

@@ -110,10 +110,12 @@ Query string object that will be added to the request URL. This will override th
 
 ###### timeout
 
-Type: `number`
+Type: `number`, `object`
 
 Milliseconds to wait for a server to send response headers before aborting request with `ETIMEDOUT` error.
 
+Option accepts `object` with separate `connect` and `socket` fields for connection and socket inactivity timeouts.
+
 ###### retries
 
 Type: `number`, `function`<br>