Make supported editors/agents more prominent

Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Matt Miller <mattrx@gmail.com>

Author: 3 people

docs/overview/introduction.mdx

@@ -29,16 +29,12 @@ Agents run as sub-processes of the code editor, and communicate using JSON-RPC o
 
 The default format for user-readable text is Markdown, which allows enough flexibility to represent rich formatting without requiring that the code editor is capable of rendering HTML.
 
-## Implementations
+## Supported Editors
 
-Currently ACP is supported by:
-
-### Editors
-
-- [Zed](https://zed.dev)
+- [Zed](https://zed.dev/docs/ai/external-agents)
 - [neovim](https://neovim.io) through the [CodeCompanion](https://codecompanion.olimorris.dev) plugin
 
-### Agents
+## Supported Agents
 
 - [Gemini](https://github.com/google-gemini/gemini-cli)
 - ... more coming soon ;)