Update README.md

fix the error of  java 11 template vertx link

Signed-off-by: huangchen007 <rex.huangc@gmail.com>

README.md

@@ -19,7 +19,7 @@ This repository contains the Classic OpenFaaS templates, but many more are avail
 | python3 | Python | 3 | Alpine Linux | classic | [Python 3 template](https://github.com/openfaas/templates/tree/master/template/python3)
 | python3-debian | Python | 3 | Debian Linux | classic | [Python 3 Debian template](https://github.com/openfaas/templates/tree/master/template/python3-debian)
 | python | Python | 2.7 | Alpine Linux | classic | [Python 2.7 template](https://github.com/openfaas/templates/tree/master/template/python)
-| java11-vert-x | Java and [Vert.x](https://vertx.io/) | 11 | Debian GNU/Linux | of-watchdog | [Java LTS template](https://github.com/openfaas/templates/tree/master/template/java11)
+| java11-vert-x | Java and [Vert.x](https://vertx.io/) | 11 | Debian GNU/Linux | of-watchdog | [Java LTS template](https://github.com/openfaas/templates/tree/master/template/java11-vert-x)
 | java11 | Java | 11 | Debian GNU/Linux | of-watchdog | [Java LTS template](https://github.com/openfaas/templates/tree/master/template/java11)
 | ruby | Ruby | 2.7 | Alpine Linux 3.11 | classic| [Ruby template](https://github.com/openfaas/templates/tree/master/template/ruby)
 | php7 | PHP | 7.2 | Alpine Linux | classic | [PHP 7 template](https://github.com/openfaas/templates/tree/master/template/php7)