Add Open Graph

Add following to index.html

<meta property="og:title" content="Smart Contract Generator">
<meta property="og:site_name" content="Smart Contract Generator">
<meta property="og:description" content="An easy to use generator for Ethereum Smart Contracts">
<meta property="og:image" content="/favicon/android-chrome-512x512.png">

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information