From a5bb7866f577a4d40d868641ef5aff4ca309c60a Mon Sep 17 00:00:00 2001
From: Tom <thomas.hodson@ecmwf.int>
Date: Sat, 19 Aug 2023 13:27:17 +0200
Subject: [PATCH] Update README.md

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 6e363c6..939f738 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,9 @@ You probably want to run ruby from a version manager like `chruby`, see [here](h
   - consider switching to using pandoc as a markdown renderer
   - setup webmentions https://aarongustafson.github.io/jekyll-webmention_io/
 
+## Validators
+  - [blacklight](https://themarkup.org/blacklight)
+
 ## Notes
 [Installation](https://jekyllrb.com/docs/installation/macos/)
 `bundle install`