Add instructions for Sourcegraph MCP server in Cursor settings (#1412)

https://sourcegraph-docs-git-jd-add-cursor-mcp-sourcegraph-f8c71130.vercel.app/api/mcp#cursor

<img width="668" height="743" alt="image"
src="https://github.com/user-attachments/assets/1f566741-6a45-476f-9c10-c196925da855"
/>


<!-- Explain the changes introduced in your PR -->

## Pull Request approval

You will need to get your PR approved by at least one member of the
Sourcegraph team. For reviews of docs formatting, styles, and component
usage, please tag the docs team via the #docs Slack channel.

Co-authored-by: Enrique Gonzalez <[email protected]>

Author: jdorfman

docs/api/mcp/index.mdx

@@ -133,6 +133,34 @@ You can also add the Sourcegraph MCP server as a locally-scoped server, which is
 
 Locally-scoped servers take precedence over project-scoped servers with the same name and are stored in your project-specific user settings.
 
+### Cursor
+
+You can add the Sourcegraph MCP server to Cursor by configuring it in your MCP settings file:
+
+1. Open or create the MCP configuration file at `~/.cursor/mcp.json` (or the equivalent path on your system).
+2. Add the following configuration:
+
+   ```json
+   {
+     "mcpServers": {
+       "sourcegraph": {
+         "type": "http",
+         "url": "https://your-sourcegraph-instance.com/.api/mcp/v1",
+         "headers": {
+           "Authorization": "token YOUR_ACCESS_TOKEN"
+         }
+       }
+     }
+   }
+   ```
+
+   <Callout type="info">
+     Replace `your-sourcegraph-instance.com` with your Sourcegraph instance URL and `YOUR_ACCESS_TOKEN` with your access token. Note that Cursor requires the `type: "http"` field to be explicitly specified.
+   </Callout>
+
+3. Save the configuration file.
+4. Restart Cursor to apply the new configuration.
+
 ## Available Tools
 
 <Callout type="info">