Enable Live Reload (parse-community#779)

* Enable Live Reload

* typo

Author: dplewis

README.md

@@ -53,6 +53,7 @@ npm run dev-win
 ```
 
 Finally, open http://localhost:4000/ in your web browser.
+File changes will be output to `_site` folder and the browser will auto refresh.
 
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package.json

@@ -5,7 +5,7 @@
   "main": "_app/main.js",
   "scripts": {
     "start": "npm run dev",
-    "jekyll": "bundle exec jekyll serve --incremental",
+    "jekyll": "bundle exec jekyll serve --incremental --livereload",
     "dev-webpack": "webpack --mode development --watch",
     "webpack": "webpack --mode production",
     "dev": "npm run dev-webpack & npm run jekyll",