feat: add demo page for clickable svg diagram component

arbitrum-docs/clickable-diagrams.mdx

@@ -0,0 +1,18 @@
+---
+title: 'Get started with clickable diagrams'
+sidebar_label: 'Get started'
+description: 'Learn how to clickable diagrams in OCL docs.'
+author: anegg0
+sme: anegg0
+content_type: get-started
+---
+
+This is a WIP page to test Mermaid in OCL docs. It will be updated with more examples and information for use by contributors.
+
+import { ClickableDiagram } from '@site/src/components/ClickableDiagram';
+
+
+### Clickable diagram:
+
+<ClickableDiagram />
+