README.md: Specify Hugo version

Not all Linux distros or Operating Systems ship Hugo
Extended version as default. If users try to run the website
project without the extended version it will fail.

Signed-off-by: Douglas Schilling Landgraf <[email protected]>

Author: dougsland

README.md

@@ -6,7 +6,7 @@ This repository contains the assets required to build the [Kubernetes website an
 
 # Using this repository
 
-You can run the website locally using Hugo, or you can run it in a container runtime. We strongly recommend using the container runtime, as it gives deployment consistency with the live website.
+You can run the website locally using Hugo (Extended version), or you can run it in a container runtime. We strongly recommend using the container runtime, as it gives deployment consistency with the live website.
 
 ## Prerequisites
 
@@ -15,7 +15,7 @@ To use this repository, you need the following installed locally:
 - [yarn](https://yarnpkg.com/)
 - [npm](https://www.npmjs.com/)
 - [Go](https://golang.org/)
-- [Hugo](https://gohugo.io/)
+- [Hugo (Extended version)](https://gohugo.io/)
 - A container runtime, like [Docker](https://www.docker.com/).
 
 Before you start, install the dependencies. Clone the repository and navigate to the directory: