README.md in jekyll-theme-isotc211-0.5.2 vs README.md in jekyll-theme-isotc211-0.5.3

@@ -1,8 +1,9 @@
 # ISO/TC211 theme by Ribose
 
 This is a theme used across ISO/TC211 sites powered by Ribose,
-including www.isotc211.org and resource sites such as geolexica.com.
+including https://www.isotc211.org
+and resource sites such as https://geolexica.org/, https://def.isotc211.org/.
 
 
 ## Configuring site
 
 Theme relies on accompanying helper plugin