docs: update social image

index.html

@@ -13,7 +13,7 @@
       name="description"
       content="The headless Chrome/Chromium performance driver for Node.js"
     />
-    <meta name="image" content="https://browserless.js.org/static/demo.png" />
+    <meta name="image" content="https://browserless.js.org/static/banner.jpg" />
     <link rel="canonical" href="https://browserless.js.org" />
     <title>browserless, the headless Chrome/Chromium performance driver for Node.js</title>
     <meta
@@ -30,7 +30,7 @@
       itemprop="description"
       content="The headless Chrome/Chromium performance driver for Node.js"
     />
-    <meta itemprop="image" content="https://browserless.js.org/static/demo.png" />
+    <meta itemprop="image" content="https://browserless.js.org/static/banner.jpg" />
 
     <!-- Twitter -->
     <meta name="twitter:card" content="summary_large_image" />
@@ -39,7 +39,7 @@
       name="twitter:description"
       content="The headless Chrome/Chromium performance driver for Node.js"
     />
-    <meta name="twitter:image" content="https://browserless.js.org/static/demo.png" />
+    <meta name="twitter:image" content="https://browserless.js.org/static/banner.jpg" />
     <meta name="twitter:label1" value="Installation" />
     <meta name="twitter:data1" value="npm install browserless --save" />
     <!-- Open Graph general (Facebook, Pinterest & Google+) -->
@@ -49,7 +49,7 @@
       property="og:description"
       content="The headless Chrome/Chromium performance driver for Node.js"
     />
-    <meta property="og:image" content="https://browserless.js.org/static/demo.png" />
+    <meta property="og:image" content="https://browserless.js.org/static/banner.jpg" />
     <meta property="og:url" content="https://browserless.js.org" />
     <meta property="og:site_name" content="browserless.js.org" />
     <meta property="og:type" content="website" />