chore: Fix typo in platform-http extension docs
This extension allows for creating HTTP endpoints for consuming HTTP requests.
-It is built on top of Eclipse Wert.x Web service provided by the `quarkus-vertx-web` extension.
+It is built on top of Eclipse Vert.x Web service provided by the `quarkus-vertx-web` extension.
To use this extension add the following dependency to your `pom.xml`:
