update changelog

Author: Jan Myszkier

CHANGELOG.md

@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+[Unreleased]
+- Update recipes.md to add information on what to do for images to work when you put vue-storefront-api on a different 
+server
+- Update recipes.md to add information on how to avoid and fix JWT token invalidation error
+- Update `prod.vuestorefront.io` nginx config in docs to remove text/html from gzipped types and avoid `duplicate MIME 
+type "text/html"` Warning in nginx logs
+
+
 ## [1.8.3] - 2019.03.03
 
 ### Added