CHANGELOG in bcrypt4-4.0.0 vs CHANGELOG in bcrypt4-4.0.1

@@ -83,5 +83,8 @@
 3.1.11 Mar 06 2016
   - Add support for Ruby 2.2 in compiled Windows binaries
 
 4.0.0 Jul 14 2017
   - Fork of project to update blowfish 1.1 to 1.3
+
+4.0.1 Jul 14 2017
+  - Add post-install note about fork