Merge pull request #284 from gtardif/fix_extension_additional_url

Fix additional URL shown at the bottom of the extension card

Author: dgageot

src/extension/Dockerfile

@@ -42,7 +42,7 @@ LABEL org.opencontainers.image.title="Docker MCP Toolkit" \
     com.docker.desktop.extension.icon="https://raw.githubusercontent.com/docker/labs-ai-tools-for-devs/main/src/extension/ui/src/assets/extension-icon.png" \
     com.docker.extension.detailed-description="Browse and connect Dockerized MCP servers to your favorite MCP clients" \
     com.docker.extension.publisher-url="https://www.docker.com/" \
-    com.docker.extension.additional-urls="https://hub.docker.com/catalogs/mcp" \
+    com.docker.extension.additional-urls="[{\"title\":\"MCP Catalog\",\"url\":\"https://hub.docker.com/catalogs/mcp\"}]" \
     com.docker.extension.categories="utility-tools" \
     com.docker.extension.changelog="Added MCP catalog"