Use ty in Emacs with Eglot (#3107)

## Summary

Add instructions on how to use ty with Emacs to the editors
documentation page.

## Test Plan

N/A

Author: torusJKL

docs/editors.md

@@ -123,6 +123,18 @@ Starting with version 2025.3, PyCharm users can enable native ty support in the
 
 For more information, refer to [PyCharm documentation](https://www.jetbrains.com/help/pycharm/lsp-tools.html#ty).
 
+## Emacs
+
+ty can be utilized as a language server via the built-in [Eglot](https://www.gnu.org/software/emacs/manual/html_node/eglot/index.html) client, which is part of Emacs since version 29.
+
+```elisp
+(with-eval-after-load 'eglot
+  (add-to-list 'eglot-server-programs
+               '(python-base-mode . ("ty" "server"))))
+
+(add-hook 'python-base-mode-hook 'eglot-ensure)
+```
+
 ## Other editors
 
 ty can be used with any editor that supports the [language server