doc: update README for 1.3.1

README.md

@@ -72,6 +72,9 @@ contented.init("#target", function(/* String[] */ items) {});
 
 ## Changelog
 
+2020-07-25: 1.3.1
+- Fix an issue with dependencies causing failure to compile in Modules mode
+
 2020-07-25: 1.3.0
 - Feature: Option to limit concurrent thumbnail generation
 - Enhancement: Set charset=UTF-8 when serving user-submitted text/plain content