Fix grammar mistake (#1527)

* Fix grammar mistake

* Simplify correction

docs/api/index.md

@@ -46,8 +46,7 @@ app.listen(3000);
   control flows back "upstream".
 
   The following example responds with "Hello World", however first the request flows through
-  the `x-response-time` and `logging` middleware to mark when the request started, then continue
-  to yield control through the response middleware. When a middleware invokes `next()`
+  the `x-response-time` and `logging` middleware to mark when the request started, then yields control through the response middleware. When a middleware invokes `next()`
   the function suspends and passes control to the next middleware defined. After there are no more
   middleware to execute downstream, the stack will unwind and each middleware is resumed to perform
   its upstream behaviour.