update metadata index.html

Author: completejavascript

package.json

@@ -2,15 +2,19 @@
   "name": "calculator",
   "version": "0.1.0",
   "private": true,
+  "homepage": "http://about.phamvanlam.com/calculator/",
   "dependencies": {
+    "gh-pages": "^1.2.0",
     "react": "^16.4.2",
     "react-dom": "^16.4.2",
     "react-scripts": "1.1.5"
   },
   "scripts": {
+    "predeploy": "npm run build",
+    "deploy": "gh-pages -d build",
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test --env=jsdom",
     "eject": "react-scripts eject"
   }
-}
+}

public/index.html

@@ -5,7 +5,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
   <meta name="theme-color" content="#000000">
-  <meta name="description" content="A basic Calculator with five functions for addition, subtraction, division, modulo and multiplication">
+  <meta name="description" content="A basic Calculator with five functions for addition, subtraction, division, multiplication and modulo operation">
   <meta name="keywords" content="calculator, create-react-app, react-js">
   <!--
       manifest.json provides metadata used when your web app is added to the