update

package.json

@@ -12,6 +12,11 @@
     "start": "webpack-dev-server --mode development",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "prettier": {
+    "tabWidth": 4,
+    "bracketSpacing": false,
+    "printWidth": 100
+  },
   "devDependencies": {
     "@babel/cli": "^7.8.4",
     "@babel/core": "^7.9.6",
@@ -34,6 +39,7 @@
     "style-loader": "^1.2.1",
     "ts-loader": "^7.0.3",
     "tslint": "^6.1.1",
+    "tslint-config-prettier": "^1.18.0",
     "tslint-react": "^4.2.0",
     "typescript": "^3.8.3",
     "webpack": "^4.43.0",