Update readme.txt

readme.txt

@@ -2,7 +2,7 @@
 Contributors: georgestephanis, valendesigns, kraftbj
 Tags: application-passwords, rest api, xml-rpc, security, authentication
 Requires at least: 4.4
-Tested up to: 4.5
+Tested up to: 4.9
 Stable tag: trunk
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
@@ -79,4 +79,4 @@ Once you have created a new application password, it's time to send a request to
 ```shell
 curl -H 'Content-Type: text/xml' -d '<methodCall><methodName>wp.getUsers</methodName><params><param><value>1</value></param><param><value>USERNAME</value></param><param><value>PASSWORD</value></param></params></methodCall>' LOCALHOST
 ```
-In the above example, replace *USERNAME* with your username, and *PASSWORD* with your new application password.  This should output a response containing all users on your site.
+In the above example, replace *USERNAME* with your username, and *PASSWORD* with your new application password.  This should output a response containing all users on your site.