Add an opengraph image

Author: ebiggz

src/app/opengraph-image.png

@@ -1,3 +1,9 @@
+export const metadata = {
+  title: 'Custom Scripts',
+  description:
+    'Learn how to create custom scripts for Firebot.',
+}
+
 # Overview
 Firebot allows you to fire off custom logic when an effect is triggered. Custom scripts can also define new effect types, event types, $variables, and much much more. This enables developers to extend Firebot's capabilities beyond the base app. Custom scripts must be written in JavaScript (or compiled to JS via TypeScipt) and are treated as a Node module, so at least a basic understanding of JavaScript will be required. We also have a template starter script written in TypeScript available. **We highly recommend using this**.