a few meta tags

src/modules/core/components/Head.tsx

@@ -1,10 +1,15 @@
 import Helmet from 'react-helmet'
 import React from 'react'
 
+const title = 'Logic gate simulator'
+const description = 'A logic gate simulator made for infoeducatie 2019'
+const url = 'https://logic-gate-simulator.herokuapp.com/'
+const thumbail = require('../../../assets/thumbail.png')
+
 const Head = () => {
     return (
         <Helmet>
-            <title>Logic gate simulator</title>
+            <title>{title}r</title>
 
             <link
                 rel="stylesheet"
@@ -24,6 +29,11 @@ const Head = () => {
                 rel="stylesheet"
             />
 
+            <meta property="og:title" content={title} />
+            <meta property="og:description" content={description} />
+            <meta property="og:image" content={`${url}${thumbail}`} />
+            <meta property="og:url" content={url} />
+
             <link rel="icon" href={require('../../../assets/favicon.ico')} />
         </Helmet>
     )