chore: exclude demo gif from npm package

Author: CarloBu

README.md

@@ -2,7 +2,9 @@
 
 Companion admin plugin for [`@payloadcms/plugin-nested-docs`](https://payloadcms.com/docs/plugins/nested-docs).
 
-<img alt="Page tree demo" src="assets/page-tree.gif" width="100%" />
+<p align="center">
+  <img alt="Page tree demo" src="assets/page-tree.gif" width="100%" />
+</p>
 
 Adds a nested tree list view for nested docs collections in Payload admin, with drag-and-drop parent changes and status badges for published / changed / draft documents.
 

package.json

@@ -40,12 +40,7 @@
   },
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
-  "files": [
-    "dist",
-    "assets",
-    "README.md",
-    "LICENSE"
-  ],
+  "files": ["dist", "README.md", "LICENSE"],
   "scripts": {
     "build": "pnpm clean && pnpm build:types && pnpm build:swc && pnpm copyfiles && pnpm build:strip-tests",
     "build:strip-tests": "rimraf \"dist/**/*.spec.*\"",