Update CHANGELOG.md

Author: Pascal Baljet

CHANGELOG.md

@@ -2,6 +2,23 @@
 
 All notable changes to `laravel-user-email` will be documented in this file
 
-## 1.0.0 - 201X-XX-XX
+## 1.0.4 - 2020-01-05
+
+- publishes the migration only once
+- refactoring
+
+## 1.0.3 - 2020-01-01
+
+- added a subject to Mailables
+
+## 1.0.2 - 2019-12-31
+
+- unguarded the PendingUserEmail model
+
+## 1.0.1 - 2019-12-30
+
+- bugfix for sending the wrong Mailable
+
+## 1.0.0 - 2019-12-30
 
 - initial release