Update release notes

Author: nknapp

release-notes.md

@@ -2,7 +2,16 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.4...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.5...master)
+
+## v4.4.5 - October 20th, 2019
+Bugfixes: 
+
+- Contents of raw-blocks must be matched with non-eager regex-matching - 8d5530e, #1579
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.4...v4.4.5)
 
 ## v4.4.4 - October 20th, 2019
 Bugfixes: