Merge branch 'master' of https://github.com/mars-sim/mars-sim.github.io

Author: bevans2000

README.md

@@ -6,14 +6,22 @@ This is a web site for the MarsSim project using [Hugo](https://gohugo.io). with
 
 Building and running the site locally requires a recent `extended` version of [Hugo](https://gohugo.io).
 You can find out more about how to install Hugo for your environment in our
-[Getting started](https://www.docsy.dev/docs/getting-started/#prerequisites-and-installation) guide.
+[Getting started](https://gohugo.io/installation/) guide.
 
 Once you've made your working copy of the site repo, from the repo root folder, run:
 
 ```bash
 hugo server
 ```
 
+The first run will take longer as it downloads modules.
+
+## installation
+
+THe installation requires numerous tools.
+
+- Hugo extended version that can be installed as precomplied binary see [Hugo Installation](https://gohugo.io/installation/). Nore Docsy does not work with all versions of Hugo, v0.137.1 does work and is used in the GitHub build
+- Go lang needs installing (https://go.dev/learn/)
 
 [Docsy user guide]: https://docsy.dev/docs
 [Docsy]: https://github.com/google/docsy