Fix file dist

Author: markcellus

package.json

@@ -4,14 +4,17 @@
   "description": "Easily wait for an element to complete it's transition using native vanilla JavaScript",
   "main": "dist/wait-for-element-transition.js",
   "types": "dist/wait-for-element-transition.d.ts",
+  "files": [
+    "dist/**/*"
+  ],
   "scripts": {
     "test": "karma start karma.conf.js && npm run lint",
     "test-server": "karma start karma.conf.js --single-run=false",
     "preversion": "npm test",
     "minify": "uglifyjs dist/wait-for-element-transition.js -o dist/wait-for-element-transition.min.js",
     "build": "rm -rf dist/* && rollup -c && npm run minify",
     "banner": "banner-cli dist/*.js",
-    "version": "npm run build && npm run banner && git add -A dist",
+    "version": "npm run build && npm run banner",
     "postversion": "git push && git push --tags",
     "start": "rollup -c --watch",
     "lint": "npm run lint:scripts && npm run lint:format",