Add EmbedEarth GitHub, SDK, CLI, and MCP links to dataset card

README.md

@@ -79,6 +79,7 @@ Original or contributing sources:
 - [Geographic Feature List](https://embed.earth/catalog/features) — browse geographic features available through EmbedEarth
 - [EmbedEarth](https://embed.earth) — programmable infrastructure for Earth
 - [Developer Documentation](https://embed.earth/docs) — APIs, tools, guides, and examples
+- [GitHub — EmbedEarth/e2](https://github.com/EmbedEarth/e2) — open-source code, issues, and contributions
 - [Geographic Search SDK](https://www.npmjs.com/package/@embedearth/sdk) — search geographic features and regions programmatically
 - [API](https://embed.earth/docs) — integrate geographic search and spatial data into applications
 - [SDK](https://www.npmjs.com/package/@embedearth/sdk) — build geographic capabilities directly into applications