Update CHANGELOG

Author: chr4

CHANGELOG.md

@@ -3,6 +3,11 @@ nginx.vim CHANGELOG
 
 This file is used to list changes made in each version of the [nginx](https://github.com/chr4/nginx.vim) plugin for the [Vim](http://www.vim.org/) editor.
 
+1.1.0
+-----
+
+- Do not highlight `SHA` ciphers, as usage as HMAC is still considered secure
+
 1.0.1
 -----