Added formatter

package.json

@@ -3,6 +3,8 @@
   "version": "1.0.0",
   "description": "One Click App Repository for CapRover",
   "scripts": {
+    "formatter": "prettier --check './public/**/*.json'",
+    "formatter-write": "prettier --write './public/**/*.json'",
     "build": "rm -rf ./dist/ && mkdir -p dist && node ./scripts/build_one_click_apps.js",
     "validate_json": "node ./scripts/validate_json.js",
     "publish": "npm run build && ./scripts/publish-from-actions.sh"
@@ -19,6 +21,7 @@
   "homepage": "https://github.com/caprover/one-click-apps",
   "dependencies": {
     "fs-extra": "^9.0.1",
-    "gh-pages": "^3.1.0"
+    "gh-pages": "^3.1.0",
+    "prettier": "^2.0.5"
   }
 }