chore: exclude package.json and README.md from package

Author: bendersej

chrome-extension/package.json

@@ -9,7 +9,7 @@
     "prettier": "prettier .",
     "test:format": "npm run prettier -- --check",
     "format": "npm run prettier -- --write",
-    "package": "npm ci --production && zip -r release.zip . -x .prettierignore .prettierrc package-lock.json"
+    "package": "npm ci --production && zip -r release.zip . -x .prettierignore .prettierrc package.json package-lock.json README.md"
   },
   "dependencies": {
     "@simplepdf/web-embed-pdf": "^1.8.4"