update CHANGELOG

Author: dai-shi

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Module-first setup #8
+
 ## [0.4.0] - 2023-10-07
 
 ### Added

package.json

@@ -4,6 +4,9 @@
   "version": "0.4.0",
   "type": "module",
   "author": "Daishi Kato",
+  "contributors": [
+    "David Maskasky (https://github.com/dmaskasky)"
+  ],
   "repository": {
     "type": "git",
     "url": "https://github.com/jotaijs/jotai-valtio.git"