mention eglot for emacs support

Author: ssnnoo

docs/editor_integration.rst

@@ -161,10 +161,12 @@ to set ``fortls`` for Fortran files
 
 Install the `lsp-mode`_ plugin. This should then allow for the variables
 `lsp-clients-fortls-args`_ and `lsp-clients-fortls-executable`_ to be defined in the ``~/.emacs`` configuration file.
+Alternatively, the `eglot`_ lsp client also supports fortls out of the box.
 
 .. _lsp-mode: https://emacs-lsp.github.io/lsp-mode/page/installation
 .. _lsp-clients-fortls-args: https://emacs-lsp.github.io/lsp-mode/page/lsp-fortran/#lsp-clients-fortls-args
 .. _lsp-clients-fortls-executable: https://emacs-lsp.github.io/lsp-mode/page/lsp-fortran/#lsp-clients-fortls-executable
+.. _eglot: https://github.com/joaotavora/eglot
 
 Visual Studio 2017
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