* Install
Get the file, add to load path, and
#+BEGIN_SRC emacs-lisp
(require 'eglot-doc)
#+END_SRC

* Usage
Show the documentation of the symbol at point: =eglot-doc-help-at-point=

Show documentation upon hover: =eglot-doc-hover-mode=. Note that you need to enable ElDoc mode for this to work.

Adjust =:background= of =eglot-doc-border= face for border color. Adjust =:background= of =eglot-doc-body= face for background color of childframe.