docs: fix broken link to tool renaming guide in README

The README references docs/deprecated-tool-aliases.md which does not
exist. The correct file is docs/tool-renaming.md.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: marcelsafin

README.md

@@ -459,7 +459,7 @@ You can also configure specific tools using the `--tools` flag. Tools can be use
 - Tools, toolsets, and dynamic toolsets can all be used together
 - Read-only mode takes priority: write tools are skipped if `--read-only` is set, even if explicitly requested via `--tools`
 - Tool names must match exactly (e.g., `get_file_contents`, not `getFileContents`). Invalid tool names will cause the server to fail at startup with an error message
-- When tools are renamed, old names are preserved as aliases for backward compatibility. See [Deprecated Tool Aliases](docs/deprecated-tool-aliases.md) for details.
+- When tools are renamed, old names are preserved as aliases for backward compatibility. See [Tool Renaming](docs/tool-renaming.md) for details.
 
 ### Using Toolsets With Docker