update changelog

CHANGELOG.md

 # Changelog of json2html-lib
 
+## V0.0.4 (2020-10-15)
+
+- add `xml` type of render
+- code comments
+- fix minor bugs
+
 ## V0.0.3 (2020-10-14)
 
 - change to accept lists of elements or not

projects/json2html/package.json

 {
   "name": "json2html-lib",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "license": "MIT",
   "repository": {
     "type": "git",