[Update] Readme (linode#3537)

* updated readme with hugo version

* Clean up copy

Co-authored-by: Andy Stevens <astevens@linode.com>

Author: hzoppetti

README.md

@@ -12,7 +12,7 @@
 
 1. Fork and clone this repository.
 
-2. Download the latest version of [Hugo](https://gohugo.io/).
+2. Download [Hugo v0.52](https://github.com/gohugoio/hugo/releases/tag/v0.52). We recommend this older version as newer versions of Hugo moved away from the Black Friday Markdown processor in favor of Goldmark; this repository relies on Black Friday.
 
 3. Navigate into the cloned repo and run `hugo server`.
 

ci/vale/dictionary.txt

@@ -499,6 +499,7 @@ gnulinux
 gnutls
 gogs
 golang
+goldmark
 goroutine
 goroutines
 goto