img added into the text, broken link fixed

content/u/products/zero-carbon-chat/contents.lr

@@ -4,6 +4,8 @@ _hidden: no
 ---
 title: Zero Carbon Chat
 ---
+image: /u/image/cards/zerocarbonchat.jpg
+---
 subtitle: backed by 100% renewable energy
 ---
 link: https://link-to-the-real-product.ch
@@ -47,7 +49,7 @@ suitable for the following use case.
 
 <div class="alert alert-secondary">
 You might be also interested in our [Matrix-based chat
-offer](../hosted-matrix-chat), which allows secure and decentralized
+offer](https://ungleich.ch/u/products/hosted-matrix-chat/), which allows secure and decentralized
 communications.
 </div>