small doc update to add x-mcp-tools header

Author: tommaso-moro

docs/remote-server.md

@@ -56,8 +56,11 @@ These toolsets are only available in the remote GitHub MCP Server and are not in
 The Remote GitHub MCP server has optional headers equivalent to the Local server env vars:
 
 - `X-MCP-Toolsets`: Comma-separated list of toolsets to enable. E.g. "repos,issues".
-    - Equivalent to `GITHUB_TOOLSETS` env var for Local server.
+    - Equivalent to `GITHUB_TOOLSETS` env var or `--toolsets` flag for Local server.
     - If the list is empty, default toolsets will be used. Invalid or unknown toolsets are silently ignored without error and will not prevent the server from starting. Whitespace is ignored.
+- `X-MCP-Tools`: Comma-separated list of tools to enable. E.g. "get_file_contents,issue_read,pull_request_read".
+    - Equivalent to `GITHUB_TOOLS` env var or `--tools` flag for Local server.
+    - Invalid tools will throw an error and prevent the server from starting. Whitespace is ignored.
 - `X-MCP-Readonly`: Enables only "read" tools.
     - Equivalent to `GITHUB_READ_ONLY` env var for Local server.
     - If this header is empty, "false", "f", "no", "n", "0", or "off" (ignoring whitespace and case), it will be interpreted as false. All other values are interpreted as true.