Fix API.md formatting

API.md

@@ -5027,6 +5027,7 @@ const handler = function (request, h) {
     request.log(['test', 'error'], 'Test event');
     return null;
 };
+```
 
 Note that any logs generated by the server internally will be emitted using the
 [`'request'` event](#server.events.request) on the `'internal'` channel.