diff --git a/documentation/md/intro.md b/documentation/md/intro.md
index ca9ac6a8df..e4ef162bb9 100644
--- a/documentation/md/intro.md
+++ b/documentation/md/intro.md
@@ -173,6 +173,10 @@
 * [Wageningen University and Research](https://www.wur.nl)
 * [World Monuments Fund](https://www.wmf.org)
 
+### Libraries
+
+* [Mermaid](https://mermaid.js.org)
+
 ### Apps & services
 
 * [Apache AGE](https://age.apache.org)