Fixed docs site's social media preview

docs/book.toml

@@ -1,6 +1,7 @@
 [book]
 title = "The Toy Programming Language"
-authors = ["Kayne Ruse"]
+authors = ["Kayne Ruse (Ratstail91)"]
+description = "Documentation For The Toy Programming Language"
 language = "en"
 
 [output.html]

docs/theme/head.hbs

@@ -0,0 +1,14 @@
+<!-- open graph protocol -->
+<meta property="og:url" content="{{ url }}" />
+<meta property="og:type" content="website" />
+<meta property="og:image" content="{{ base_url }}/img/toypreview.png" />
+<meta property="og:title" content="{{ title }}" />
+<meta property="og:description" content="{{ description }}" />
+
+<!-- twitter has to be special -->
+<meta name="twitter:card" content="{{ title }}" />
+<meta name="twitter:url" content="{{ url}}" />
+<meta name="twitter:type" content="website" />
+<meta name="twitter:image" content="{{ base_url }}/img/toypreview.png" />
+<meta name="twitter:title" content="{{ title }}" />
+<meta name="twitter:description" content="{{ description }}" />