added embed diagram

Author: soheimam

docs/base-app/miniapps/sharing-your-miniapp.mdx

@@ -30,6 +30,10 @@ Think of sharing as your app's built-in referral system. The better it looks, th
 
 When a user shares your app link, the receiving platform (Base feed, Warpcast, Twitter, etc.) requests Open Graph (OG) metadata from your page. This metadata determines how your embed appears — including the image, title, description, and any interactive button.
 
+<Frame caption="How embed data is rendered">
+  <img src="/images/minikit/Diagram.png" alt="how embed data is rendered" />
+</Frame>
+
 ### Share flow
 
 1. **User clicks Share**